Wow! You have explained this so well. It’s been really enjoyable learning about this & putting the pieces together that are never really explained. My question is: does an astigmatism/CYL impact a lenses thickness? the farsightedness in the SPH of my Rx is low e.g., OD 0.00 & OS +1.00, but the CYL is -0.75 & -3.50. Astigmatism is worse in left eye & I’m always overthinking which index to choose for my Rx. E.g. 1.50, 1.57, 1.59, 1.61 etc mid/high index etc & I wonder if a thicker lens index would be problematic for an astigmatism, beyond aesthetics.
Hi @princess-p9b, Thank you for watching. The 275/250 refers to different prescription strengths, usually indicating how much correction is needed for vision. For example, -2.75 or -2.50 typically indicates nearsightedness. It's best to consult your optometrist for accurate information. Hope this helps.
my old glass prescription right eye sph= -2.0, cyl= -0.50, axis= 90 va=6/6 and left eye sph =-2.0, cyl= -0.5, axis = 90 va=6/6. My current eye prescription is right eye sph= -1.0, cyl= -1.0, axis= 90, va= 6/6 and left eye sph = -1.0, cyl= -0.75, axis = 90, va =6/6 . sir please kindly reply do i need to change glass or can use old glass. thank you
Hi Justin Trojan, thank you for watching. :) If you have Plano under sphere, it means that you do not suffer from myopia or hyperopia. Please let us know if you have any additional questions.
Hi, thank you for your upload. My question is; In 2019 R=SPH:+0.75, CYL: -0.25, AXIS:110, ADD+0.75 L=SPH:+0.50, CYL: -0.25, AXIS: 80, ADD+0.75 In 2022 R=SPH:+0.50, CYL: -0.25, AXIS:125, ADD +1.25 L=SPH:+1.00, CYL: -0.50, AXIS: 80, ADD+1.25 The numbers still don't make sense to me, could you kindly explain?
Hi Jamie Taberer, thank you for watching. :) The R and L refer to your right and left eyes. SPH indicates the sphere, so it represents the correction needed for nearsighted or farsighted vision. CYL stands for cylinder, it's combined with the AXIS to correct an astigmatism. AXIS is the angle of the cylinder when placed on a lens to correct astigmatism. Finally, ADD is the additional correction needed for correcting presbyopia. Please let us know if you have any additional questions.
Are the following 2 prescriptions essentially the same? A far-sighted 10-year-old with 2 diopters in both eyes. A 50-year-old with single-vision reading glasses with 2 diopters in both eyes.
Hi Dalica, thank you for watching. :) SPH refers to the sphere, so it represents the correction needed for nearsighted or farsighted vision. LT refers specifically to your left eyes and RT to your right eyes. Please let us know if you have any additional questions.
@@RXSafety Thank you, but I was wondering what do I write for my RT cylinder instead of “SPH” since I’m getting my prescription glasses online. There’s no option for me to put “SPH”, but a number and I have none for it.
Thank you Doc. Your explanation is clear and easy to understand.
Just started with a company that has the most awful training ever! So I need to learn on my own. Thank you for this video!
We hope it was helpful.
This was amazing! I just started in optical and it made no sense but all the dots are connected please make more videos
what do u put down in a website if the axis isnt filled out on the prescription?
Wow! You have explained this so well. It’s been really enjoyable learning about this & putting the pieces together that are never really explained. My question is: does an astigmatism/CYL impact a lenses thickness? the farsightedness in the SPH of my Rx is low e.g., OD 0.00 & OS +1.00, but the CYL is -0.75 & -3.50. Astigmatism is worse in left eye & I’m always overthinking which index to choose for my Rx. E.g. 1.50, 1.57, 1.59, 1.61 etc mid/high index etc & I wonder if a thicker lens index would be problematic for an astigmatism, beyond aesthetics.
Just received my inserts for my ESS glasses from you guys and they are perfect! And priced very well.
Great to hear it!
Helpful. Would you be able to tell me by my prescription what it means.
This was so helpful and educational! ❤
Hi, i would like to know where is 0 and where is 180 for left and for right eye.
Hi..i would like to ask..so base on the video..if anyone would ask about the eye grade level is it 275/250? Please enlighten me..thank you.
Hi @princess-p9b,
Thank you for watching. The 275/250 refers to different prescription strengths, usually indicating how much correction is needed for vision. For example, -2.75 or -2.50 typically indicates nearsightedness. It's best to consult your optometrist for accurate information. Hope this helps.
What does VA mean? I was just told I 20/20 vision, but the right eye in the VA section was listed with a 20/20 -2. What does this mean?
VA= visual acquity .
You read till the 20/20 line but missed two letters in that line thats why 20/20-2 is written
👍👍thnks for information
Well explained.. Good job
my old glass prescription right eye sph= -2.0, cyl= -0.50, axis= 90 va=6/6 and left eye sph =-2.0, cyl= -0.5, axis = 90 va=6/6. My current eye prescription is right eye sph= -1.0, cyl= -1.0, axis= 90, va= 6/6 and left eye sph = -1.0, cyl= -0.75, axis = 90, va =6/6 . sir please kindly reply do i need to change glass or can use old glass. thank you
If your VA = 6/6 then why do you even need glasses ?
Lady thank you very much very much appreciate.
Very nicely explained.
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Good explanation 🙌 👍
Glad you think so!
Clear explain thank you
Slit lamp and AR machine demo
I have the word Plano under sphere. What does that mean?
Hi Justin Trojan, thank you for watching. :) If you have Plano under sphere, it means that you do not suffer from myopia or hyperopia. Please let us know if you have any additional questions.
Hi, thank you for your upload.
My question is; In 2019
R=SPH:+0.75, CYL: -0.25, AXIS:110, ADD+0.75
L=SPH:+0.50, CYL: -0.25, AXIS: 80, ADD+0.75
In 2022
R=SPH:+0.50, CYL: -0.25, AXIS:125, ADD +1.25
L=SPH:+1.00, CYL: -0.50, AXIS: 80, ADD+1.25
The numbers still don't make sense to me, could you kindly explain?
Hi Jamie Taberer, thank you for watching. :) The R and L refer to your right and left eyes. SPH indicates the sphere, so it represents the correction needed for nearsighted or farsighted vision. CYL stands for cylinder, it's combined with the AXIS to correct an astigmatism. AXIS is the angle of the cylinder when placed on a lens to correct astigmatism. Finally, ADD is the additional correction needed for correcting presbyopia. Please let us know if you have any additional questions.
@@RXSafety R=SPH was .25 lower in 2022 compared with 2019?
It's quite common for eyes to change between sight tests, especially over a three year gap.
Are the following 2 prescriptions essentially the same? A far-sighted 10-year-old with 2 diopters in both eyes. A 50-year-old with single-vision reading glasses with 2 diopters in both eyes.
I'm farsighted but I can't see far or small words far away..
My RT cylinder says "SPH.", but my LT cylinder says -0.50... what do I write for my RT cylinder?
Hi Dalica, thank you for watching. :) SPH refers to the sphere, so it represents the correction needed for nearsighted or farsighted vision. LT refers specifically to your left eyes and RT to your right eyes. Please let us know if you have any additional questions.
@@RXSafety Thank you, but I was wondering what do I write for my RT cylinder instead of “SPH” since I’m getting my prescription glasses online. There’s no option for me to put “SPH”, but a number and I have none for it.
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