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In the final weeks before my mother succumbed to cancer her eyes went from a brownish green to bright newborn blue. I don't know if it was the illness or the chemo that caused it and I don't know exactly when it happened. I just remember talking to her one afternoon and realizing her eyes were the wrong color. It was kind of surreal.
I was looking at comments hoping to find out what they were really talking about. Thank you. Now I know that being able to change my eye color isn't what the video is about. That's what I wanted to find out.
Eye color can sometimes darken slightly during pregnancy due to hormonal changes. This is called hypermelanosis, which can cause blotchy pigmentation on the eyelids, cheeks, and nose of up to 70% of pregnant women.
My sister had a weird thing where her eyes would shift their colors, like pulling a shade, well into her teens. Her eye colors were blue, green, and brown. One eye would be fully brown and the other part blue and part green, then the brown would start turning blue while the green in her other eye would begin taking up more space. Strangest thing I ever saw. Finally settled on one blue eye and one half green and half brown. I used to check her eyes weekly when we were kids. Absolutely amazing
I had a similar issue between green and blue. Used to have blue as a kid, then they started going hazel in high school. During my young adult years, they would alternate between blue and green. Now they are blue with green at the pupil and a smattering of brown all over. It's so weird!
I've got one: my eyes went from green to blue because of an acanthamoeba infection. the amoeba eat nerve tissue in your eyes and leave behind so much scar tissue that the eye appears to be blue. most survivors of the infection go on to have blue eyes for the rest of their lives, even if they did not have light/colored eyes before
"you probably think you know the color of your eyes pretty well" meanwhile, me with hazel eyes that randomly look anywhere from moss green to dark brown-
Same. I think of them as fairly green but i guess other people think they're very brown based on the not uncommon 'wait...WHAT colour are your eyes?!' because they suddenly saw them as very green for a moment. The lighting and what i'm wearing can make a big difference.
Yeah, mine are green-gray on the inner ring and brown on the outer. In primary school we had a lesson on eye color. The other kids angrily wouldn't let me say my eyes were hazel thinking I just wanted to be different (ok, yeah. I did, but my eyes are my eyes, damn it). Ever since then I just say my eyes are brown on everything and to anyone that asks for it. But now I have a moment in every interpersonal relationship where someone realizes my eyes aren't just brown.
My wife has multiple colors. They're "green" but technically lean a little hazel. A ring of gold on the inside around the pupil, a ring of aqua with a little silver to it, where it meets the white of her eyes. It's WILD. And depending on lighting is when people make the distinction between green and hazel. It's not the same thing as others shared here, but just sharing because eyes be wild. 😂
Brain surgery also can change your eye color too. A friend had hydrocephalus and had to get a shunt installed so they needed brain surgery for it. She went into the surgery with blue eyes and now she has heterochromia with one blue eye and one brown eye.
I was born with congenital Anaridia and only have a thin ring of iris at the edge of my pupils. I also have cataracts and nystagmus, with a high chance of glaucoma. I hope in the future I can get iris implants, I first need Cataracts surgery and Cornea transplant surgery. A big thank you to SciShow for bringing more attention to Aniridia, not many people who weren't eye doctors have heard of it.
I was born in 1963 with congenital cataracts, so I sort of understand what you've gone through. I had my first eye surgery to remove my left lens when I was 16 y/o, and back in 1979, before lasers were used in eye surgery, eye surgery was brutal. When I was 30 y/o I had lens implants done in both my R&L eyes, and I don't remember anymore how many less evasive maintenance laser surgeries I've needed in the proceeding years, but there's been enough. In my mid 40s I also had a detached retina in my L eye, so a zip tie like buckle was surgically placed around that eye to repair it. I've been visually impaired my entire life, but I'm grateful that my vision was substantially improved and even saved in my L eye, all due to the dedication of medical professionals, the advancements of lasers in eye surgery and etc. Oh, and my eye color also changed (heterocromia: hazel green with areas of brown), due to the trama that eye surgery causes. Blessings to you...
I was hoping you'd go into more detail about the pupil reaction to a knock on the head. Just a tip: If someone you are near bumps their head, have them stare at a bright light source. Put your hand over their eyes while they are still looking at the light with their eyes open. Quickly remove your hand and watch the pupils dilate. If the pupils dilate slowly, it is worth taking a trip to the hospital as this could indicate a concussion. It is not a full proof test and shouldn't be used in place of medical advice; if a severe head knock occurs, it is best to er of the sode of caution. A childhood friend of my sisters got a concussion when they were 11 years old. She wasn't taken to hospital. She was found in a coma the next morning. She eventually died 3 months later. Head trauma is not something to take risks with.
This reminds me of the documentary made by photograper Steve McCurry who went back to Afghanistan to find the girl from his famous National Geographic cover photo. Her eye colour changed significant.
Bruh I was positive that as a black woman there was no way my husband's baby blues would be dominant over my brown.... Her eyes are blue blue and I'm like OK 20%european heritage you showed up and I'm impressed.
it's actually a bit more complicated than the blue/brown recessive/dominant thing I learned in school :) I did read about it because the father of my kids and I both have green eyes (mine were more hazel/brown when I was young but getting greener with time),but our oldest has grey/blue eyes, the second more green/hazel and the youngest fully brown ones
I have brown eyes, but after having lazy eye surgery on my right eye it turned bright blue for about a week afterwards and then returned to its normal colour. It didn't seem like the pupil was affected from the surgery, so I always wondered if it was a weird colour illusion because the sclera was bright red and that just made the iris look blue in contrast somehow? Eyes are so strange.
I used to hate that I had brown eyes because of everyone else having pretty blue eyes, but now I have them beat because green eyes are way better 😂 especially with the gold color mixed in with it
Longtime SciShow viewer here! I miss when sponsorships were at the beginning or the end of the videos. I get into the zone and absorbed in the science, then BAM! Ad. :/ Having them at the beginning or the end was less disruptive.
My eyes were blue as a kid. It's clear in photos. Somewhere around my early teens, I noticed them starting to go kind of turquoise. By High School, they were quite greenish. They settled on green with brown flecks when I was in my 20's and are almost identical to my dad's. I've wondered for years if the hormones associated with puberty caused the color change.
I was surprised to see hormones not listed among the reasons, I am trans and after starting hormone therapy noticed my eyes changed from hazel to green. Looked in to it after noticing and sure enough hormones can impact melanin production.
I had a friend in high school whose eyes were a muted green when we started, but they were almost solid grey by the time we graduated. He didn't seem to think it was weird, so maybe it ran in his family.
@@Lhene9 Same! Mine are more slate blue or light green depending on what I wear, but they were bright blue until puberty. I even ended up changing my eye color to green on my driver's license in my 20s, much to the DMV employee's confusion.
I have noticed that my eye color lightened now that I'm older. when I was younger my brown eyes were so dark that they looked black. In HS science they were talking about how our pupils would change shape due to amount of light; to show this we had to partner up as teacher would turn lights on and off. It was very difficult to see any difference between my iris and pupils, so much so that my partner complained he couldn't see any change. He had to get a different partner to see it. I noticed that by age 40 my eyes were several shades lighter than the pupil.
Mine too, i have well lit pics of my eyes when I was a kid, and I remember them lol. They were chocolate brown. Like a nice even brown. Now they're light to medium brown and green, more green around the outside and darker on the inside. I looked up pics and tons of people have almost the same exact effect as mine, and are asking if it's normal. I feel kind of sad about it, i liked my brown eyes
When born I had dot of brown on one eye, and over the years it has spread out and now I have almost a perfect 90 degree arc of brown in one eye. I love the uniqueness 👁️🗨️
My snake has crazy eye color. He's a blue eyed leucistic ball python, but art first glance he looks to have super pale pink patches splotched inside the blue of his iris. I was a little concerned until I contacted a very about his over all health, mostly eye related as the main issue was seemingly cataracts. I got the final push to take him to the vet when I put his photos on Reddit's bp boards. The crazy thing was m when I took photos to post on Reddit, I had to zoom in to make what I was asking as clear as possible. That was when I realized what was going on. He didn't have pink and blue eyes, he had spots where his iris was just... missing. Gone. The “pink” was actually a few teeny tiny little veins passing by where there was a lack of colour all together. I know this is about human eyes but it was just to fascinating not to share. The very said it was likely genetic and that he seemed fine, so I'm not worried anymore. He does indeed have cataracts though, and she thinks it's only a fairly short matter of time before he goes blind. He's such a good and smart boy though, so he can see well enough without vision that we'll likely not notice is and when his vision goes.
Can you possibly do a video about Visual Snow Syndrome please? It could be part of a video about uncommon neurological disorders, if you didn't want to do a whole video on it, since there are so many uncommon disorders that people haven't heard of.
@@animeko I've been telling doctors about it for *years* and it's only recently that I finally found out what its called. For context, I'm 31 and I've had this for as long as I can remember.
Interestingly enough, some types of "visual snow" can be due to people being able to see the white blood cells traveling inside their own eyes. It's called the Blue Field Entoptic Phenomenon. It usually happens when looking at a bright blue sky and is caused by the fact that red blood cells absorb blue light, but white blood cells don't and let the light through to your retina. They can also look stretched or like little worms, because they sometimes have to squeeze themselves through the tiny capillaries in our eyes. You can also see them slow down and accelerate in time with your heart rate. That's just one cause for visual snow, but I think it's pretty cool.
I'm 49. I was conditioned through years of acne and rosacea to not look at my reflection. I avoid pictures and mirrors. I use red lightbulbs in my bathroom (I'm married, my wife uses the master bathroom with normal lights and I use the guest bathroom which is right next to my office). I do not do selfies. Consequently, I have not seen my own eye color in decades...
That's so sad. I'm an acne girly (I've done everything the dermatologists have told me to do with no luck) and I used to avoid my reflection too but at some point I just got tired. Clear skin might not be one of my traits, but I have plenty of others!. Yes we have acne AND yes we are beautiful! I have really nice eyes, maybe you do too!
I may be wrong, but I'm guessing your wife finds you attractive since she married you. Nobody's perfect and many people find beauty in imperfections. Maybe consider therapy to address your self image issues?
Ooo this should be neat! I've noticed the little changes in the eye color of those close to me since I was very small ( I blame being an artist who LOVES TO COLOR IRISES so its a detail I pay attention to ). The first and most promenent is my mother; she has hazel eyes that look deep brown when she's relaxed, but if she's under incredible stress or in pain they appear more yellow-green. When her eyes are most yellow, like unearthly Are You Actually A Cat yellow, she had a sinus headache and was in incredible pain. My own eyes appear a light pale blue most days, but if I've been functioning in a dim or dark space for an extended period of time they look more aqua to green. My best friend as a kid has hetrochroma they didn't even notice until I saw that, under the same low light conditions, one eye turned more blue and the other eye turned more green. ( we were tweens so when I pointed this out to my buddy he was STOKED )
Fun fact, I genuinely don't know my eye colour. I relied on someone telling me my eyes were hazel for my license. I've had people tell me they're green before, too.
Either ask next time you’re at the optometrist or take a super close pic of your eye with a good camera in a bright room (get some help for an easier time). That’s how I figured out my blue eyes have a couple bright yellow spots that make them look green sometimes. :)
Same here. It's not always as simple as having one's photo taken, either. Depending on the proportions of colours, the conditions, and the perspective of the viewer, they could be any shade and combination brown, grey, green, yellow, with either brown or green as the primary hue. Calling all of these things hazel just seems like a simple was to classify all these possibilities.
Mine shift colours on occasion, from grey through blue, green and hazel. As Hank noted above, emotions can be linked to that effect, and I've had multiple people point out the different colours over the years. Ambient lighting will make a difference, of course, but that doesn't cover anywhere near the differences.
He used David Bowie as an example of someone with one pupil that is stuck permanently dilated, and that's still visible in black and white. It's not true heterochromia, his eyes are the same color, but having one large pupil and one normal sized pupil makes them *appear* different colors. It's basically a human optical illusion, which is pretty cool. Maybe the editor went with a black and white photo to illustrate that it's not the color itself that's abnormal, it's the pupil size.
Please do a video on the evolution and distribution of melanin across species. Please also include fungi and other 'simple' organisms. When did melanin evolve? How many times did it evolve? How many kinds of melanin are there on Earth? How did we get so many kinds of melanin, and why is it so highly conserved across species?
I have blue eyes with a thick dark blue stripe under both pupils, and a friend in high school insisted on calling my eyes “keyholes” because of it 😅 it does give me a cool pseudo cats eye effect tho
It's not a color shift, but after my bacterial conjunctivitis with corneal impingement, my eyes don't dialate the same anymore. The impacted eye usually has a slightly bigger pupil. They still both dilate, it's just like they don't react the same to light so they do it different amounts. It's certainly interesting.
I knew about the change due to emotions---it happens a lot to both me and my dad. My dad has blue eyes that end up looking dark grey when he's angry, and I have grey-brown eyes that have at times looked almost silver when I was excited or abnormally happy.
I've wondered if maybe part of our perception of eye color is dependent on the color of the sclera around it. For example, if when I'm sleep-deprived and my eyes are redder, do my eyes simply appear greener by comparison?
Its an honor to hear the real world life lived passion come thru in a talk about kids eye cancer. You make it exciting to hear about eye science! Thanks Dude!
Forgot the last one: whenever someone gets their magical powers their eye turns an extremely bright and unnatural colour that coincidentally matches very well with whatever they're doing
Your eyes changing with your emotions sounds like it shouldn't be true, but it is really noticeable for some people. My mother's eyes are green when neutral or happy, hazel to dark brown when angry or stressed, and blue when tired or sad. Friends have told me that mine change as well, although to a lesser extent since I have brown eyes.
Not sure exactly of the mechanics but this is definitely a thing, despite some experts claiming it is not. Since I was a young teenager (in my 60's now) if I got very angry or highly annoyed with some situation, or some person, many people commented how my eyes would go VERY noticeably dark, even though they are normally a light gray/blue, to such an extent it disturbed them, and these were people that knew nothing about that aspect of my eyes, so there was no knowledge ahead of time. The iris changed that is, not the pupil simply dilating. Also, directly after waking up in the mornings my eyes are much more blue than gray, when the rest of the day it is the opposite.
Its not real, its the pupil changing size from mood, and tricks of the light can make them appear different. Even the colours you wear can bring out certain hues. Its like them optical illusions where a colour looks totally different depending on what its next to.
While I don’t consider myself an angry person, I was told by a girlfriend that my blue eyes turned gray when I got very angry once. 😡 😳 (bad things happened in her past, I felt some feelings when she told me about them. I did not punch any walls, etc.)
As a child my eyes and hair were dark brown. Sometime in the 80's (in my 20s) my hair started graying (a genetic trait) and my eyes went hazel-green, which they still are. When I have been stressed my eyes have always turned a greenish shade. I recently learned that I've had PTSD since 1983. I have to wonder if that's why the color change.
My eyes have been described as multiple different colors, most commonly blue or green. Sometimes people call them hazel. But I swear they really do look like different colors sometimes! Sometimes they look a little more blue, other times a little more green, and still others hazel. I’ve heard wearing different color shirts can make your eyes appear to be different colors because of the reflection as well, although I’m not entirely sure if that’s correct.
As far as I understand, naturally light grey eyes tend to appear as a different colour depending on the environment, because they reflect light very well. I have grey eyes, but they usually appear either green or blue, lol.
My dad was a scary guy who would go into terrible rages at times. He had hazel eyes and they were normally a muddy green/brown. When he got mad, they went black. Very scary
I dated a violent, abusive monster about 10 years ago, and her eyes were blue, but when she raged, her eyes would turn black. I suspect it was her irises widening, but I could be wrong. Her face would distort because of the overwhelming anger, which was unlike anything else I've seen
@@Lily_of_the_Forest I’m not rly sure. If he was mad at you, it was better not to make eye contact. He mostly got like that when he drank, so it wasn’t too frequent
I have blue eyes like 1:27 and I also had a few orange specks in my eye. Fast forward 15 years later the spots got larger and a brighter orange, I started having migraines. Fast forward another 5 years migraines got worse and the colour of the orange spots turned dark brown. A trip to the hospital later find out I had a large Melanoma on my eye that could have spread to other parts of my body at any point and I was rushed into surgery. Get your eyes checked if you notice any changes!!
My eyes used to be blue (sometimes appearing lighter or darker, or nearly green- usually depending on what colors I wore near my face, i.e. shirt or hat) up until I was nearly 16, but then a week before my 16th birthday I slipped and fell at a local creek and fractured the back of my skull and got a nasty concussion and minor optic nerve damage from it. Ever since then my eyes have been green and rarely change shade unless I'm very sick (I'm chronically ill) and I think inflammation might contribute to making them appear darker. I also have Idiopathic Intracranial Hypertension (excess cerebral spinal fluid condition that causes brain tumor-esque symptoms), which can effect the eyes due to causing papilledema (optic nerve swelling due to raised intracranial pressure), and that might contribute as well. I think my circumstance is closest to number 10 in that case, but it was really neat to learn about the different ways eyes can change color!
I was so disappointed when I recovered from a concussion and my right eye resumed its normal pupil size and iris colour. For two weeks I was like Bowie.
hey hank, fascinating video - but i just wanted to say, youre totally rocking the post-cancer curly hair! it really works for you!! all the best mate :)
I have central heterochromia. My eyes look hazel from a distance when in reality they are both brown and green, not one colour somewhere in between. The green is on the inside and has lines in it and the brown is on the outside worth a matte solid looking texture. For the longest time I thought they were hazel and it's took learning about central heterochromia to know just how crazy rate they were! It's so uncommon to have them, that when in 10th grade biology, during a project where we were to learn about dominant and recessive alleles, I broke my teacher by telling him I inherited my eye color from _both_ of my parents. I thought that was the case at the time. He said I had hazel, and I told him “yeah, but I'm the only one in my family with hazel eyes, yet my mom's are brown and my dad's saree green. Also, that my eyes were both. He said “a mix.” i said “no, both at once”. He had to nope out of the conversation. The internet told it straight. I have heterochromia!! [Edit]: my eyes also seem to change colour and at the beginning of this video, I thought that perhaps the perceived change way due to my pupil distillation and my specific eye composition. My specific heterochromia, because it's one colour is closer to my pupil and the other, on the outside of my iris, my pupils dilate to cover one colour only, which makes my eyes look the other color in contrast.
Thats wild, my wife and i both have heterochromia, we have been wracking our brains trying to figure out how we passed on blues and browns, but it makes some sense when both of us come from blue and brown eyed parents
My 4yo has central heterochromia. Ever since he was born my husband and I would disagree about what color his eyes were. He said brown, I said blue/grey. Turns out we're both kinda right. 😂 (His eyes have a golden ring around the pupil, and the rest is grey)
I have brown in a "star shaped" pattern in the middle and outer edge is green. I used to have all brown eyes up to the age of 15-18. Didn't even notice the change myself until someone told me my eyes look gray.
I appreciate you explaining this. My father had very green eyes on when i was born. Had these green eyes until we moved to Texas... After 5 years of no contact he had very dark brown. I swear he literally wasnt the same person.
2:35 Kittens and puppies are the same, Dad's golden lab started out with piercing blue eyes before settling to a lovely grey-green. Black kittens are also really adorable with their birth eye color but it's *extremely* rare to have them stay blue. Almost unheard of in the wild.
I was born with blue eyes that changed to hazel around 6 months. During puberty my friends noticed that my eyes change with my moods. It was lighter with more green when happy and got really dark when I was mad. My eyes have stayed green since my mid twenties.
I have a genetic condition called aniridia so I don’t have an iris or an eye color heheh Well I guess I do but it’s only a stump you need a fancy eye microscope to see it😂
How does that work? How does it affect your eyesight? Is The area that would normally be taken up by your iris, instead taken up by an expanded pupil or by an expanded white of the eye? I apologize if this is insensitive, but I’ve never heard of this before and I’m quite curious about how it functions!
Same! My eye color has always wandered between blue/green and light brown (today they are green apparently), but definitely much lighter tones of color after a year on estrogen. 🏳⚧
Omg, I've been on T for 2.5 years and now I have to go look at my eyes to see if they might've changed 😂. It's so strange the things you find that hrt does just as a bonus.
I guess I'm a rainbow baby in more then one way. Not only the obvious rainbow baby definition but also my hair and eyes changed colors several times growing up. Born black hair blue eyes, shifted to blonde hair brown eyes about 8months after birth then again around age 3 I turned strawberry blonde with hazel eyes, hair darkened to dirty blonde sometime around age 8 and finally sometime in my teens my eyes turned green and my hair a gray brown. Unfortunately my green shows best when I'm sad or have freshly cried. Like dang, I'm so sad but my eyes, theybare stunning lmfao.
Weird, based on both my own observations and comments by others, the times when my eyes are green heavily trends towards when I'm happiest or most content.
A large percentage of babies are born with lighter eyes, and its very common for babies at be born with hair that falls out and grows back fair and gets darker and changes texture as they age
@@DrBunnyMedicinal the reason our eyes look greener when we are tearing or have cried, is just because of an increase of redness around the iris, which contrasts making the green stand out. Just colour wheel stuff. But that is interesting that you notice more greenness when you you feel good.
@@TheFireBurningWithin "Just colour wheel stuff." Fascinating, and not a connection I would have ever made myself. Much like the (apparent) emotional connections, but I've had significant others point it out to me more than once.
The inner part of my eye when my pupils are small is a golden green tone, the majority of my eyes are a greyish blue and I have a dark blue ring around the outside of the iris. Occasionally, my emotions or the other colors around my eyes ( like certain makeup or clothing) can make my eyes look different colors, once they went a beautiful deep violet shade that lasted about 5 minutes after I 1st noticed the change. I have had several people argue with me over the years that I couldn't possibly have all of this as a natural eye coloring and demanded to know what contacts I was wearing. I can't wear contacts. And I really despise people who have to argue with you when they don't get the answer they want.
My dog has one eye that's such a dark brown it's almost black--except for a tiny sliver of blue at the bottom. The other eye has some dark at the top, and the rest of it is bright blue. It's so cool, and she's only 2 years old so now I'm excited to find out if her eyes end up changing at all through her lifetime!
My eyes are green, but when I'm sick or sad they change to a bluish-grey. When I'm super happy, excited or crying hard, then they get bright green.....
I’ve seen a couple of people here say they don’t really know their eye colors, and fitting with this, my eyes tend to shift from blue to grey to green depending on who you ask 🤷♂️
Before watching video - I had blue eyes first couple years of life.. For the next 30 years they were dark green, living in Iowa... Within months of moving to Wisconsin, my eyes turned very blue, again, and have been blue for about 10 years.
I don't know when my eyes changed colour, but they were hazel when I was a kid and today they are blue with a hazel ring near the pupil. My doctor said that this is probably due to aging as pathological conditions that may result in this kind of colour change go with a heap of other symptoms.
I always love when people say things like "Go to the doctor if there's new brown spots in your skin or iris". Like, how am I supposed to remember if they were there or not, if I have a dozen new spots on my skin every 3-5 months in random places?
ive always sort of hated my eyes because theyre brown, i always wanted my dads eye color (blue) because he was my favorite parent. knowing that my eye color actually reduces health risks later in life makes me feel a bit better. by the way neither of my parents have brown eyes :) both of my grandmothers do tho, weird recessive stuff lol, my brother ALSO has brown eyes. (my mother has hazel/green/blueish eyes lol)
I'm so excited you mentioned emotion! This is the only time I've heard scientific validation that indeed, my eyes change color with my feels! I've known this about myself since I was a kid. Thank you!
i thought this was gonna be like “if you eat too many carrots your eyes will turn orange, crazy huh?” i didnt expect to learn about fuchs heterochromic iridocyclitis
i have central heterochromia, the inner portion is hazel and turns into a light green towards the outer part. it became noticeable when i started taking testosterone blockers and estrogen.
Mine used to be a light brown, amber?, all through childhood and well into adolescence, but they've darkened as I got older. My son's look brown on the inside and green-hazel on the outside. When his pupils dialate, you mostly just see the brown. When they get small, you can see the greenish part too
I had the late childhood eye colour change. When I was a child I had blue eyes and around early teens I was noticing dark green rings shrinking blue in middle and now my eyes are basically just green but I think I sometimes see some blue in middle as an adult
omg same , and the change around the same time. Though people do still think they're still blue because they're so pale, until they look closer. I had a theory that it was because i dealt with major emotional upheavel during my teens, but perhaps it's unrelated. Can you relate to that? otherwise i might be able to rule that out.
Jeff Healey--famous Canadian Blues musician was blind from infancy due to retinoblastoma. Later in life, he presented with sarcoma in his legs and lungs, and that killed him. I knew him in highschool--he went to the same school as me, and we often talked about music and life. I didn't know until many years later that the cause of his blindness was retinoblastoma.
my grandma always said the amount of sleep I got would make my eyes look greener (my are hazel so sometimes look brown and sometimes more green) but after watching this video I am wondering if just having more sleep/being more awake meant my eyes could be open wider letting more light reflect, therefore making the appearance of bright green eyes my eyes are more brown nowadays at 26 yrs olds, in Highschool (18yrs) they could be such a vibrant green.
When I was small, my eyecolor used to change pretty often, the older I got. My father has blue eyes, my mother brown eyes, so mine are now a very wierd mix, depending on how much light falls on them
6:55 I've had an injection in my eye (antibiotics for an infection). They use numbing drops, so there's a pressure, but no real pain. You just have to be calm enough that they can do it. I did mine with no medication, but I'm sure they'd use a sedative if necessary.
I have blue grey eyes when I have a migraine I get a black ring around the blue iris depending on the day if it’s sunny they look blue, but if it’s cloudy and stormy they look more grey than blue. They also reflect what I’m wearing. It’s interesting at how the eyes can pick up the colours from your clothing.
I had this full dilation thing. I suffered from a thrombosis in the central vein of my right eye and had several operations, in one of which I got an artificial lense. And this lense somehow got agglutinated (stuck/clotted) with the iris and the pupil was wide open and wasn't round anymore. My iris colour went from blue-grey to deep green. It was spooky. They fixed it by freeing the agglutination. Now the colour is quite normal, the pupil is small, but stuck small and a bit lopsided.
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Please tell brilliant that we want nothing to do with LLMs and crap like that
My eye colors like to change it ranges from dark brown to blue green and some gray
In the final weeks before my mother succumbed to cancer her eyes went from a brownish green to bright newborn blue. I don't know if it was the illness or the chemo that caused it and I don't know exactly when it happened. I just remember talking to her one afternoon and realizing her eyes were the wrong color. It was kind of surreal.
Sorry for your loss.
Chemo did it. It was covered in another SciShow video about a year ago?
Probably chemo! My boyfriend's Mom developed Vitiligo after chemo, because chemotherapy can often kill melanocytes completely.
I was born with blue gray eyes and my eyes gradually turned light brown
@@TraciBinITmy youngest kid was the same way. His eyes were grey until he was about three when they turned very light brown
Omg he said Iridocyclitis
omg based album
🤣
Iridocyclitis
Sh*t killed me and it wasn’t even a joke🤣😭
As an ophthalmic assistant, I'm geaking out right along with you!
As an optometrist, yes I was impressed you straight faced Fuchs heterochromic iridocyclitis without skipping a beat
twice even
Aint no way that was a one taker 😂
I wonder how many people clicked this hoping to change their eye colour, only to be horrified that it mainly just discusses diseases
I sure did :/
And chemotherapy or physical damage.
I was looking at comments hoping to find out what they were really talking about. Thank you. Now I know that being able to change my eye color isn't what the video is about. That's what I wanted to find out.
I just wanted to know why my hazel eyes change so much
Eye color can sometimes darken slightly during pregnancy due to hormonal changes. This is called hypermelanosis, which can cause blotchy pigmentation on the eyelids, cheeks, and nose of up to 70% of pregnant women.
My sister had a weird thing where her eyes would shift their colors, like pulling a shade, well into her teens. Her eye colors were blue, green, and brown. One eye would be fully brown and the other part blue and part green, then the brown would start turning blue while the green in her other eye would begin taking up more space. Strangest thing I ever saw. Finally settled on one blue eye and one half green and half brown. I used to check her eyes weekly when we were kids. Absolutely amazing
I had a similar issue between green and blue. Used to have blue as a kid, then they started going hazel in high school. During my young adult years, they would alternate between blue and green. Now they are blue with green at the pupil and a smattering of brown all over. It's so weird!
That’s actually a condition. Usually benign, but it isn’t normal. Kate Bosworth is a famous example of someone with this condition.
This is common in hazel eyes. My mother's eyes did this.
My eyes do this.
@@jjmah7 are you taking about heterochromia?
I've got one: my eyes went from green to blue because of an acanthamoeba infection. the amoeba eat nerve tissue in your eyes and leave behind so much scar tissue that the eye appears to be blue. most survivors of the infection go on to have blue eyes for the rest of their lives, even if they did not have light/colored eyes before
I'm pretty sure a lot of dark coloured eyed people would love this infection
Ooh that’s a painful one
@@telenelatelin8632 thanks! it almost killed me but im too stubborn to let a single cell organism take me out
I'm glad you're still here❤
DAWG! 😎
"you probably think you know the color of your eyes pretty well" meanwhile, me with hazel eyes that randomly look anywhere from moss green to dark brown-
Same. I think of them as fairly green but i guess other people think they're very brown based on the not uncommon 'wait...WHAT colour are your eyes?!' because they suddenly saw them as very green for a moment. The lighting and what i'm wearing can make a big difference.
Yeah, mine are green-gray on the inner ring and brown on the outer. In primary school we had a lesson on eye color. The other kids angrily wouldn't let me say my eyes were hazel thinking I just wanted to be different (ok, yeah. I did, but my eyes are my eyes, damn it). Ever since then I just say my eyes are brown on everything and to anyone that asks for it. But now I have a moment in every interpersonal relationship where someone realizes my eyes aren't just brown.
I know the colours of my eyes well, anywhere from blue to green.
I put green on my id but they range from yellow wolf, grey, green and all shades between. Never brown though.
My wife has multiple colors. They're "green" but technically lean a little hazel. A ring of gold on the inside around the pupil, a ring of aqua with a little silver to it, where it meets the white of her eyes. It's WILD. And depending on lighting is when people make the distinction between green and hazel.
It's not the same thing as others shared here, but just sharing because eyes be wild. 😂
Brain surgery also can change your eye color too. A friend had hydrocephalus and had to get a shunt installed so they needed brain surgery for it. She went into the surgery with blue eyes and now she has heterochromia with one blue eye and one brown eye.
Mine have done the same, for the same reason.
That's wild! I've had a vp shunt placed, but my eyes didn't change. 😞
Wow !
Cool!
I was born with congenital Anaridia and only have a thin ring of iris at the edge of my pupils.
I also have cataracts and nystagmus, with a high chance of glaucoma.
I hope in the future I can get iris implants, I first need Cataracts surgery and Cornea transplant surgery.
A big thank you to
SciShow for bringing more attention to Aniridia, not many people who weren't eye doctors have heard of it.
I was born in 1963 with congenital cataracts, so I sort of understand what you've gone through. I had my first eye surgery to remove my left lens when I was 16 y/o, and back in 1979, before lasers were used in eye surgery, eye surgery was brutal. When I was 30 y/o I had lens implants done in both my R&L eyes, and I don't remember anymore how many less evasive maintenance laser surgeries I've needed in the proceeding years, but there's been enough. In my mid 40s I also had a detached retina in my L eye, so a zip tie like buckle was surgically placed around that eye to repair it. I've been visually impaired my entire life, but I'm grateful that my vision was substantially improved and even saved in my L eye, all due to the dedication of medical professionals, the advancements of lasers in eye surgery and etc. Oh, and my eye color also changed (heterocromia: hazel green with areas of brown), due to the trama that eye surgery causes. Blessings to you...
I was hoping you'd go into more detail about the pupil reaction to a knock on the head.
Just a tip:
If someone you are near bumps their head, have them stare at a bright light source. Put your hand over their eyes while they are still looking at the light with their eyes open. Quickly remove your hand and watch the pupils dilate.
If the pupils dilate slowly, it is worth taking a trip to the hospital as this could indicate a concussion.
It is not a full proof test and shouldn't be used in place of medical advice; if a severe head knock occurs, it is best to er of the sode of caution.
A childhood friend of my sisters got a concussion when they were 11 years old. She wasn't taken to hospital. She was found in a coma the next morning. She eventually died 3 months later.
Head trauma is not something to take risks with.
ooh, that's why doctors in films always shine a flashlight into peoples eyes
This reminds me of the documentary made by photograper Steve McCurry who went back to Afghanistan to find the girl from his famous National Geographic cover photo.
Her eye colour changed significant.
Bruh I was positive that as a black woman there was no way my husband's baby blues would be dominant over my brown.... Her eyes are blue blue and I'm like OK 20%european heritage you showed up and I'm impressed.
Statistically there is a very small chance of that happening, and it happened for you!
it's actually a bit more complicated than the blue/brown recessive/dominant thing I learned in school :) I did read about it because the father of my kids and I both have green eyes (mine were more hazel/brown when I was young but getting greener with time),but our oldest has grey/blue eyes, the second more green/hazel and the youngest fully brown ones
@@estelle8457I got grey/blue eyes just call em icy blue for simplicity.
Actually blue eyes are a dominant trait.
I've read plenty of stories like this in the comment section albeit of not this video.
You carry a recessive gene for blue eyes.
I have brown eyes, but after having lazy eye surgery on my right eye it turned bright blue for about a week afterwards and then returned to its normal colour. It didn't seem like the pupil was affected from the surgery, so I always wondered if it was a weird colour illusion because the sclera was bright red and that just made the iris look blue in contrast somehow? Eyes are so strange.
It's possible that the melanocytes in your iris were temporarily deactivated by whatever medications or anaesthetic they used?
My eyes went from darker brown when i was young to now lighter and a golden green color in my 20s
The same thing happened with my mom’s grandma
Mine have as well. And not evenly. Some places are darker and some more an amber and others a hazel shade. With a dark blue ring around them.
I used to hate that I had brown eyes because of everyone else having pretty blue eyes, but now I have them beat because green eyes are way better 😂 especially with the gold color mixed in with it
My eyes did the same thing when I was 17.
Same. I was born with black eyes and now they are hazel
Longtime SciShow viewer here! I miss when sponsorships were at the beginning or the end of the videos. I get into the zone and absorbed in the science, then BAM! Ad. :/ Having them at the beginning or the end was less disruptive.
Thats not a coincidence, at the beginning and end they are easier to skip 😂
My eyes were blue as a kid. It's clear in photos. Somewhere around my early teens, I noticed them starting to go kind of turquoise. By High School, they were quite greenish. They settled on green with brown flecks when I was in my 20's and are almost identical to my dad's. I've wondered for years if the hormones associated with puberty caused the color change.
I was surprised to see hormones not listed among the reasons, I am trans and after starting hormone therapy noticed my eyes changed from hazel to green. Looked in to it after noticing and sure enough hormones can impact melanin production.
I had a friend in high school whose eyes were a muted green when we started, but they were almost solid grey by the time we graduated. He didn't seem to think it was weird, so maybe it ran in his family.
My eyes also changed colour during puberty! From a steel blue to a lighter grey-green.
Mine changed from bright blue to bright green during high school.
@@Lhene9 Same! Mine are more slate blue or light green depending on what I wear, but they were bright blue until puberty. I even ended up changing my eye color to green on my driver's license in my 20s, much to the DMV employee's confusion.
I have noticed that my eye color lightened now that I'm older.
when I was younger my brown eyes were so dark that they looked black. In HS science they were talking about how our pupils would change shape due to amount of light; to show this we had to partner up as teacher would turn lights on and off. It was very difficult to see any difference between my iris and pupils, so much so that my partner complained he couldn't see any change. He had to get a different partner to see it.
I noticed that by age 40 my eyes were several shades lighter than the pupil.
I have that too!
Do you go out in the sun a lot? Sun bleaching of the iris is definitely a thing (surprised they didn't mention it in this list actually)
Mine too, i have well lit pics of my eyes when I was a kid, and I remember them lol. They were chocolate brown. Like a nice even brown. Now they're light to medium brown and green, more green around the outside and darker on the inside. I looked up pics and tons of people have almost the same exact effect as mine, and are asking if it's normal. I feel kind of sad about it, i liked my brown eyes
the beholder in our dnd game: *blushes* "stawp"
I'm kind of glad I wasn't the only one who thought of this, lol.
Ya know what, I am proud of you Hank, I am. We love you, keep being you!
When born I had dot of brown on one eye, and over the years it has spread out and now I have almost a perfect 90 degree arc of brown in one eye. I love the uniqueness 👁️🗨️
My snake has crazy eye color. He's a blue eyed leucistic ball python, but art first glance he looks to have super pale pink patches splotched inside the blue of his iris. I was a little concerned until I contacted a very about his over all health, mostly eye related as the main issue was seemingly cataracts. I got the final push to take him to the vet when I put his photos on Reddit's bp boards. The crazy thing was m when I took photos to post on Reddit, I had to zoom in to make what I was asking as clear as possible. That was when I realized what was going on. He didn't have pink and blue eyes, he had spots where his iris was just... missing. Gone. The “pink” was actually a few teeny tiny little veins passing by where there was a lack of colour all together. I know this is about human eyes but it was just to fascinating not to share. The very said it was likely genetic and that he seemed fine, so I'm not worried anymore. He does indeed have cataracts though, and she thinks it's only a fairly short matter of time before he goes blind. He's such a good and smart boy though, so he can see well enough without vision that we'll likely not notice is and when his vision goes.
Unfortunately genetic anomalies happen all the time when you start deep diving into the morphs.
I love ball pythons!!!
I assume your snake also senses his surroundings with his tongue as well, so eyesight is not as crucial as it is for humans.
Can you possibly do a video about Visual Snow Syndrome please? It could be part of a video about uncommon neurological disorders, if you didn't want to do a whole video on it, since there are so many uncommon disorders that people haven't heard of.
Yes ! I thought everyone saw the "TV static" until recently...
@@animeko I've been telling doctors about it for *years* and it's only recently that I finally found out what its called. For context, I'm 31 and I've had this for as long as I can remember.
Interestingly enough, some types of "visual snow" can be due to people being able to see the white blood cells traveling inside their own eyes.
It's called the Blue Field Entoptic Phenomenon. It usually happens when looking at a bright blue sky and is caused by the fact that red blood cells absorb blue light, but white blood cells don't and let the light through to your retina. They can also look stretched or like little worms, because they sometimes have to squeeze themselves through the tiny capillaries in our eyes.
You can also see them slow down and accelerate in time with your heart rate.
That's just one cause for visual snow, but I think it's pretty cool.
@@RayWolf666 I found out it's because I get vestibular migraine.
I'm 49. I was conditioned through years of acne and rosacea to not look at my reflection. I avoid pictures and mirrors. I use red lightbulbs in my bathroom (I'm married, my wife uses the master bathroom with normal lights and I use the guest bathroom which is right next to my office). I do not do selfies. Consequently, I have not seen my own eye color in decades...
That's so sad. I'm an acne girly (I've done everything the dermatologists have told me to do with no luck) and I used to avoid my reflection too but at some point I just got tired. Clear skin might not be one of my traits, but I have plenty of others!. Yes we have acne AND yes we are beautiful! I have really nice eyes, maybe you do too!
I may be wrong, but I'm guessing your wife finds you attractive since she married you. Nobody's perfect and many people find beauty in imperfections. Maybe consider therapy to address your self image issues?
I ❤ this!! So 🎯💯‼️ @@cobaltpterodactyl
I wonder if that's my problem. My acne was terrible in my teenage years and I avoid mirrors, but thought it was some sort of anti-vanity tactic.
Hank is a brilliant presenter 👍🏻
I'm surprised that one of the most noticeable way to change eye colour wasn't mentioned, activating your Sharingan.
They aren't ready for that.
How about becoming Super Sayan too?!
@@anonymous-wf5xn They also failed to mention vampirism. Don't just leave all the good stuff out guys.
Finally, somebody! thank you!
Demonic possession, cyborg cosmetic lens damage, a total eclipse of the heart, there's a lot of possibilities
Hank, we're all proud of you for saying fuchs heterochromic iridocyclitis correctly
Ooo this should be neat!
I've noticed the little changes in the eye color of those close to me since I was very small ( I blame being an artist who LOVES TO COLOR IRISES so its a detail I pay attention to ). The first and most promenent is my mother; she has hazel eyes that look deep brown when she's relaxed, but if she's under incredible stress or in pain they appear more yellow-green. When her eyes are most yellow, like unearthly Are You Actually A Cat yellow, she had a sinus headache and was in incredible pain.
My own eyes appear a light pale blue most days, but if I've been functioning in a dim or dark space for an extended period of time they look more aqua to green.
My best friend as a kid has hetrochroma they didn't even notice until I saw that, under the same low light conditions, one eye turned more blue and the other eye turned more green. ( we were tweens so when I pointed this out to my buddy he was STOKED )
Fun fact, I genuinely don't know my eye colour. I relied on someone telling me my eyes were hazel for my license. I've had people tell me they're green before, too.
Either ask next time you’re at the optometrist or take a super close pic of your eye with a good camera in a bright room (get some help for an easier time). That’s how I figured out my blue eyes have a couple bright yellow spots that make them look green sometimes. :)
Hazel is a tough one. I have hazel eyes as well and sometimes they look browner and sometimes they look greener
Thank you. I shall try to remember this. Gonna have to take a screenshot, lol
Same here. It's not always as simple as having one's photo taken, either. Depending on the proportions of colours, the conditions, and the perspective of the viewer, they could be any shade and combination brown, grey, green, yellow, with either brown or green as the primary hue. Calling all of these things hazel just seems like a simple was to classify all these possibilities.
Mine shift colours on occasion, from grey through blue, green and hazel. As Hank noted above, emotions can be linked to that effect, and I've had multiple people point out the different colours over the years. Ambient lighting will make a difference, of course, but that doesn't cover anywhere near the differences.
I love your channel. Thank you so much for these great broadcasts!
I have a bit of an issue with you choosing a black and white picture of David Bowie 😂
He used David Bowie as an example of someone with one pupil that is stuck permanently dilated, and that's still visible in black and white. It's not true heterochromia, his eyes are the same color, but having one large pupil and one normal sized pupil makes them *appear* different colors. It's basically a human optical illusion, which is pretty cool. Maybe the editor went with a black and white photo to illustrate that it's not the color itself that's abnormal, it's the pupil size.
That's cool I'm looking now and I see what you mean. /Worldview altered
Please do a video on the evolution and distribution of melanin across species. Please also include fungi and other 'simple' organisms. When did melanin evolve? How many times did it evolve? How many kinds of melanin are there on Earth? How did we get so many kinds of melanin, and why is it so highly conserved across species?
I have blue eyes with a thick dark blue stripe under both pupils, and a friend in high school insisted on calling my eyes “keyholes” because of it 😅 it does give me a cool pseudo cats eye effect tho
I worked for a short while with a young lady who had "keyhole" pupils like that. Pretty interesting!
It's not a color shift, but after my bacterial conjunctivitis with corneal impingement, my eyes don't dialate the same anymore. The impacted eye usually has a slightly bigger pupil. They still both dilate, it's just like they don't react the same to light so they do it different amounts. It's certainly interesting.
I knew about the change due to emotions---it happens a lot to both me and my dad. My dad has blue eyes that end up looking dark grey when he's angry, and I have grey-brown eyes that have at times looked almost silver when I was excited or abnormally happy.
Thanks for the video. Loving the curls, BTW!
"Don't it make my brown eyes blue." --Richard Leigh/Crystal Gayle, 1977
When I was a small kid I thought the lyric was "donuts" and could not understand what the hell she was talking about.
Now she had the most beautiful eyes!
I've wondered if maybe part of our perception of eye color is dependent on the color of the sclera around it. For example, if when I'm sleep-deprived and my eyes are redder, do my eyes simply appear greener by comparison?
Yes me too, I've got blue eyes and if I'm tired or allergies my eyes go extremely bright blue
I've noticed my eyes look a lot more bright green after I've been crying.
Its an honor to hear the real world life lived passion come thru in a talk about kids eye cancer. You make it exciting to hear about eye science! Thanks Dude!
Forgot the last one: whenever someone gets their magical powers their eye turns an extremely bright and unnatural colour that coincidentally matches very well with whatever they're doing
We are indeed so proud of you, Hank!!!!
Your eyes changing with your emotions sounds like it shouldn't be true, but it is really noticeable for some people.
My mother's eyes are green when neutral or happy, hazel to dark brown when angry or stressed, and blue when tired or sad. Friends have told me that mine change as well, although to a lesser extent since I have brown eyes.
I belive this is because cortisol (the stress hormone) is black and can temporarily stain the eyes
Not sure exactly of the mechanics but this is definitely a thing, despite some experts claiming it is not. Since I was a young teenager (in my 60's now) if I got very angry or highly annoyed with some situation, or some person, many people commented how my eyes would go VERY noticeably dark, even though they are normally a light gray/blue, to such an extent it disturbed them, and these were people that knew nothing about that aspect of my eyes, so there was no knowledge ahead of time. The iris changed that is, not the pupil simply dilating. Also, directly after waking up in the mornings my eyes are much more blue than gray, when the rest of the day it is the opposite.
Its not real, its the pupil changing size from mood, and tricks of the light can make them appear different. Even the colours you wear can bring out certain hues. Its like them optical illusions where a colour looks totally different depending on what its next to.
@@houselightkellnone of that is true
While I don’t consider myself an angry person, I was told by a girlfriend that my blue eyes turned gray when I got very angry once. 😡 😳
(bad things happened in her past, I felt some feelings when she told me about them. I did not punch any walls, etc.)
As a child my eyes and hair were dark brown. Sometime in the 80's (in my 20s) my hair started graying (a genetic trait) and my eyes went hazel-green, which they still are. When I have been stressed my eyes have always turned a greenish shade. I recently learned that I've had PTSD since 1983. I have to wonder if that's why the color change.
That’s interesting. I had blue eyes when I was young. My hair started graying in my late teens, and my eyes turned grey-green.
I like that you include your sources in the video description, but please make them open access😊
While I don't know the extent, Hormone Replacement Therapy(HRT) can also lead to changes in eye color!
im gonna find out the extent one day..
Also glutathione can too; it has an affect on melanin.
@@jared-2just a myth, you will discover zilch.
My eyes have been described as multiple different colors, most commonly blue or green. Sometimes people call them hazel. But I swear they really do look like different colors sometimes! Sometimes they look a little more blue, other times a little more green, and still others hazel. I’ve heard wearing different color shirts can make your eyes appear to be different colors because of the reflection as well, although I’m not entirely sure if that’s correct.
It is correct. If I wear a green shirt my eyes look very green. Usually, they are a blue color with a bit of green tint.
Same here. I've never heard about the shirt color thing. I always assumed it was based on the lighting in the room or something.
As far as I understand, naturally light grey eyes tend to appear as a different colour depending on the environment, because they reflect light very well.
I have grey eyes, but they usually appear either green or blue, lol.
Fascinating! Thanks for the video!
Nice to see you very much alive and having your hair back Green.
My dude John here is getting that Egon Spangler hair going nice!
Had mey eys go from green to hazel as a kid, I also used to have blond hair as a young child but slowly shifted to dirty blond to dark brown.
I am a high school student and enjoy your videos please keep making more :)
My mom would always look at my eyes as a kid to see what color they were so she knew what mood I was in. This was fascinating
Hank, I really do love you man ❤
My dad was a scary guy who would go into terrible rages at times. He had hazel eyes and they were normally a muddy green/brown. When he got mad, they went black. Very scary
Was the black from the pupil enlarging or was it the actual irises changing color and the pupil staying the same?
I dated a violent, abusive monster about 10 years ago, and her eyes were blue, but when she raged, her eyes would turn black. I suspect it was her irises widening, but I could be wrong. Her face would distort because of the overwhelming anger, which was unlike anything else I've seen
@@Lily_of_the_Forest I’m not rly sure. If he was mad at you, it was better not to make eye contact. He mostly got like that when he drank, so it wasn’t too frequent
I have blue eyes like 1:27 and I also had a few orange specks in my eye. Fast forward 15 years later the spots got larger and a brighter orange, I started having migraines. Fast forward another 5 years migraines got worse and the colour of the orange spots turned dark brown. A trip to the hospital later find out I had a large Melanoma on my eye that could have spread to other parts of my body at any point and I was rushed into surgery. Get your eyes checked if you notice any changes!!
My eyes used to be blue (sometimes appearing lighter or darker, or nearly green- usually depending on what colors I wore near my face, i.e. shirt or hat) up until I was nearly 16, but then a week before my 16th birthday I slipped and fell at a local creek and fractured the back of my skull and got a nasty concussion and minor optic nerve damage from it.
Ever since then my eyes have been green and rarely change shade unless I'm very sick (I'm chronically ill) and I think inflammation might contribute to making them appear darker. I also have Idiopathic Intracranial Hypertension (excess cerebral spinal fluid condition that causes brain tumor-esque symptoms), which can effect the eyes due to causing papilledema (optic nerve swelling due to raised intracranial pressure), and that might contribute as well.
I think my circumstance is closest to number 10 in that case, but it was really neat to learn about the different ways eyes can change color!
I don't know, maybe it's just me, but I don't think Beholder Eyes are very beautiful. Many a dungeon diver would agree, I think!
Thanks for bringing up Bowie! I love him still and his music inspired me so much. Plus yes, those eyes were amazing!!!
I was so disappointed when I recovered from a concussion and my right eye resumed its normal pupil size and iris colour. For two weeks I was like Bowie.
hey hank, fascinating video - but i just wanted to say, youre totally rocking the post-cancer curly hair! it really works for you!! all the best mate :)
I have central heterochromia. My eyes look hazel from a distance when in reality they are both brown and green, not one colour somewhere in between. The green is on the inside and has lines in it and the brown is on the outside worth a matte solid looking texture.
For the longest time I thought they were hazel and it's took learning about central heterochromia to know just how crazy rate they were!
It's so uncommon to have them, that when in 10th grade biology, during a project where we were to learn about dominant and recessive alleles, I broke my teacher by telling him I inherited my eye color from _both_ of my parents. I thought that was the case at the time. He said I had hazel, and I told him “yeah, but I'm the only one in my family with hazel eyes, yet my mom's are brown and my dad's saree green. Also, that my eyes were both. He said “a mix.” i said “no, both at once”. He had to nope out of the conversation.
The internet told it straight. I have heterochromia!!
[Edit]: my eyes also seem to change colour and at the beginning of this video, I thought that perhaps the perceived change way due to my pupil distillation and my specific eye composition. My specific heterochromia, because it's one colour is closer to my pupil and the other, on the outside of my iris, my pupils dilate to cover one colour only, which makes my eyes look the other color in contrast.
Thats wild, my wife and i both have heterochromia, we have been wracking our brains trying to figure out how we passed on blues and browns, but it makes some sense when both of us come from blue and brown eyed parents
My 4yo has central heterochromia. Ever since he was born my husband and I would disagree about what color his eyes were. He said brown, I said blue/grey. Turns out we're both kinda right. 😂 (His eyes have a golden ring around the pupil, and the rest is grey)
I have brown in a "star shaped" pattern in the middle and outer edge is green. I used to have all brown eyes up to the age of 15-18. Didn't even notice the change myself until someone told me my eyes look gray.
I appreciate you explaining this.
My father had very green eyes on when i was born. Had these green eyes until we moved to Texas... After 5 years of no contact he had very dark brown. I swear he literally wasnt the same person.
2:35 Kittens and puppies are the same, Dad's golden lab started out with piercing blue eyes before settling to a lovely grey-green. Black kittens are also really adorable with their birth eye color but it's *extremely* rare to have them stay blue. Almost unheard of in the wild.
Wow Great work with the script Hank, some real tongue twisters in there... You could be a Star Trek character!
I was born with blue eyes that changed to hazel around 6 months. During puberty my friends noticed that my eyes change with my moods. It was lighter with more green when happy and got really dark when I was mad. My eyes have stayed green since my mid twenties.
Maybe you’ve been pretty happy in those years since they starting remaining green, even in the hard times
I've also moved from hazel to green in my twenties, not mad at all they're my favorite eye color 😌
I have a genetic condition called aniridia so I don’t have an iris or an eye color heheh
Well I guess I do but it’s only a stump you need a fancy eye microscope to see it😂
How does that work?
How does it affect your eyesight?
Is The area that would normally be taken up by your iris, instead taken up by an expanded pupil or by an expanded white of the eye?
I apologize if this is insensitive, but I’ve never heard of this before and I’m quite curious about how it functions!
@@rangercommandervelvlarumai7589Usually a large pupil. People with this condition are often very sensitive to light and sometimes legally blind
This is awesome. Thank you so much for sharing.
"Don't it make my brown eyes blue. " - Crystal Gayle.
Yes Hank! I'm proud of you for saying 'the word I'm not even gonna attempt to write'
My eye color got sooooooo much lighter after I started estrogen
your eyes wanted to transition too!
thats really interesting! I wonder if the eye color changes with testosterone too.
Same! My eye color has always wandered between blue/green and light brown (today they are green apparently), but definitely much lighter tones of color after a year on estrogen. 🏳⚧
Omg, I've been on T for 2.5 years and now I have to go look at my eyes to see if they might've changed 😂. It's so strange the things you find that hrt does just as a bonus.
When did you notice the change?
I guess I'm a rainbow baby in more then one way. Not only the obvious rainbow baby definition but also my hair and eyes changed colors several times growing up.
Born black hair blue eyes, shifted to blonde hair brown eyes about 8months after birth then again around age 3 I turned strawberry blonde with hazel eyes, hair darkened to dirty blonde sometime around age 8 and finally sometime in my teens my eyes turned green and my hair a gray brown. Unfortunately my green shows best when I'm sad or have freshly cried. Like dang, I'm so sad but my eyes, theybare stunning lmfao.
Weird, based on both my own observations and comments by others, the times when my eyes are green heavily trends towards when I'm happiest or most content.
A large percentage of babies are born with lighter eyes, and its very common for babies at be born with hair that falls out and grows back fair and gets darker and changes texture as they age
@@DrBunnyMedicinal the reason our eyes look greener when we are tearing or have cried, is just because of an increase of redness around the iris, which contrasts making the green stand out. Just colour wheel stuff. But that is interesting that you notice more greenness when you you feel good.
My best friend and I both were born blonde but our hair darkened to brown(mine) and dark dark brown/black(bsf)
@@TheFireBurningWithin "Just colour wheel stuff."
Fascinating, and not a connection I would have ever made myself. Much like the (apparent) emotional connections, but I've had significant others point it out to me more than once.
The inner part of my eye when my pupils are small is a golden green tone, the majority of my eyes are a greyish blue and I have a dark blue ring around the outside of the iris. Occasionally, my emotions or the other colors around my eyes ( like certain makeup or clothing) can make my eyes look different colors, once they went a beautiful deep violet shade that lasted about 5 minutes after I 1st noticed the change. I have had several people argue with me over the years that I couldn't possibly have all of this as a natural eye coloring and demanded to know what contacts I was wearing. I can't wear contacts. And I really despise people who have to argue with you when they don't get the answer they want.
My dog has one eye that's such a dark brown it's almost black--except for a tiny sliver of blue at the bottom. The other eye has some dark at the top, and the rest of it is bright blue. It's so cool, and she's only 2 years old so now I'm excited to find out if her eyes end up changing at all through her lifetime!
I've heard there's an association between hearing problems and blue eyes in dogs and/or cats. Something to do with pigment in their ears?
My eyes are green, but when I'm sick or sad they change to a bluish-grey. When I'm super happy, excited or crying hard, then they get bright green.....
Thats honestly really cool!
Mako infusion upon joining SOLDIER.
Hi I don't look at the internet a lot and just found out Hank is in remission. Good job.
I’ve seen a couple of people here say they don’t really know their eye colors, and fitting with this, my eyes tend to shift from blue to grey to green depending on who you ask 🤷♂️
Before watching video - I had blue eyes first couple years of life.. For the next 30 years they were dark green, living in Iowa... Within months of moving to Wisconsin, my eyes turned very blue, again, and have been blue for about 10 years.
I don't know when my eyes changed colour, but they were hazel when I was a kid and today they are blue with a hazel ring near the pupil. My doctor said that this is probably due to aging as pathological conditions that may result in this kind of colour change go with a heap of other symptoms.
I always love when people say things like "Go to the doctor if there's new brown spots in your skin or iris".
Like, how am I supposed to remember if they were there or not, if I have a dozen new spots on my skin every 3-5 months in random places?
ive always sort of hated my eyes because theyre brown, i always wanted my dads eye color (blue) because he was my favorite parent. knowing that my eye color actually reduces health risks later in life makes me feel a bit better. by the way neither of my parents have brown eyes :) both of my grandmothers do tho, weird recessive stuff lol, my brother ALSO has brown eyes. (my mother has hazel/green/blueish eyes lol)
I'm so excited you mentioned emotion! This is the only time I've heard scientific validation that indeed, my eyes change color with my feels! I've known this about myself since I was a kid. Thank you!
Your curls are adorable!!!
the momentt you mentioned keiser flesiher rings i knew you were talking about wilsons disease as i have wilsons disease irl was diagnosed at age 17
I have the Hazel eye color and it turns emerald when I tear up or cry. It's all really fascinating.
I'm proud of you Hank. :)
i thought this was gonna be like “if you eat too many carrots your eyes will turn orange, crazy huh?” i didnt expect to learn about fuchs heterochromic iridocyclitis
12:16 for some reason after you said this, I really wanted you to follow up with “now roll a Dexterity Saving Throw”
i have central heterochromia, the inner portion is hazel and turns into a light green towards the outer part.
it became noticeable when i started taking testosterone blockers and estrogen.
Mine used to be a light brown, amber?, all through childhood and well into adolescence, but they've darkened as I got older.
My son's look brown on the inside and green-hazel on the outside. When his pupils dialate, you mostly just see the brown. When they get small, you can see the greenish part too
I have glaucoma, & I use Latanoprost eye drops. My eyes began blue, but now they are blue with a green ring around the pupil. It's pretty cool.
The fact that as soon as I saw this I clicked and was like please please please make me less boring🤞🤞🤞
I had the late childhood eye colour change. When I was a child I had blue eyes and around early teens I was noticing dark green rings shrinking blue in middle and now my eyes are basically just green but I think I sometimes see some blue in middle as an adult
omg same , and the change around the same time. Though people do still think they're still blue because they're so pale, until they look closer.
I had a theory that it was because i dealt with major emotional upheavel during my teens, but perhaps it's unrelated.
Can you relate to that? otherwise i might be able to rule that out.
@TheFireBurningWithin I was bullied mostly vocally because I would cry as a kid but not have anything major with my emotional state that I noticed
10:45 - cracked me up! Hank, you're a legend in your own right!🤣
my eyes are multi-coloured: green-gray with yellow and brown spots
A video on congenital nystagmus would be nice.
Jeff Healey--famous Canadian Blues musician was blind from infancy due to retinoblastoma. Later in life, he presented with sarcoma in his legs and lungs, and that killed him. I knew him in highschool--he went to the same school as me, and we often talked about music and life. I didn't know until many years later that the cause of his blindness was retinoblastoma.
my grandma always said the amount of sleep I got would make my eyes look greener (my are hazel so sometimes look brown and sometimes more green) but after watching this video I am wondering if just having more sleep/being more awake meant my eyes could be open wider letting more light reflect, therefore making the appearance of bright green eyes
my eyes are more brown nowadays at 26 yrs olds, in Highschool (18yrs) they could be such a vibrant green.
When I was small, my eyecolor used to change pretty often, the older I got. My father has blue eyes, my mother brown eyes, so mine are now a very wierd mix, depending on how much light falls on them
6:55 I've had an injection in my eye (antibiotics for an infection). They use numbing drops, so there's a pressure, but no real pain. You just have to be calm enough that they can do it. I did mine with no medication, but I'm sure they'd use a sedative if necessary.
I have blue grey eyes when I have a migraine I get a black ring around the blue iris depending on the day if it’s sunny they look blue, but if it’s cloudy and stormy they look more grey than blue. They also reflect what I’m wearing. It’s interesting at how the eyes can pick up the colours from your clothing.
I had this full dilation thing. I suffered from a thrombosis in the central vein of my right eye and had several operations, in one of which I got an artificial lense. And this lense somehow got agglutinated (stuck/clotted) with the iris and the pupil was wide open and wasn't round anymore. My iris colour went from blue-grey to deep green. It was spooky. They fixed it by freeing the agglutination. Now the colour is quite normal, the pupil is small, but stuck small and a bit lopsided.