20 20 Eyeglass

My eyeglass prescription is -16.00. This is so nearsighted that my eye doctors never use the good old 20/20 system. I was wondering how I measure up?

I read online that this is close to 1/200 (not on the 20/20 scale)

2006-11-07 13:53:27 by marjorie s

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My right sphere is -3.25, cylinder is -2.25, and axis is 004.
My left sphere is -3.25, cylinder is -2.00, and axis is 004.

it would be approx 20/300

2009-05-01 18:53:03 by Shareef

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i went to the eye doctor today and i have the perscription but how do i find out what my eyesite is { like 20/20 or what i know it is not 20/20 but how do i know what it is?}

In order to write your prescription for glasses, your eye doctor had to have you read different lines of the eye chart. The best line (smallest line of letters) you could read before he/she put lenses in front of your eyes is your UNCORRECTED visual acuity (eg. 20/60). The best you could read with the best combination of lenses in front of your eye is your (best) corrected visual acuity (hopefully 20/20 or better). That information is in your chart at your doctor's office. Just call them, and they should be able to give it to you.

2008-02-16 19:21:55 by mahmoud m

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Ok, so say the
right eye is -4.25 and
the left eye is -1.25
does anyone know how to convert that in to eyesight with the number over 20?
all, i know that since its a negative number its for nearsightness?
i wear glasses at home and contacts out side. And i wear them most of the time like 90% of the day.

Some people say it's not possible to translate it. Others would estimate it at around 20/400 and 20/70. Is that your prescription? Do you wear glasses full time? That's a big difference between your eyes.

2008-12-14 22:04:20 by I ♥ Longboarders!

In other words, if I have a current eyeglass prescription can I tell from that what my "UNCORRECTED VISION" reading would be? Thank you for your help!

The answer to your question is NO.
The ONLY way to know what your uncorrected vision is when you get yours eyes tested and you read the chart without your glasses.
Generally your Dr already knows you need glasses so when he tests your eyes they will usually test you with your current pair of glasses on to see if that prescription is helping you in the way they should.If those glasses aren't helping you to see at your maximum potiential then he does the eye testing to see what your new prescription should be.
If infact you were tested at the Dr's office without your glasses then you can call the Dr office and see what that vision was.
If your prescription for your glasses is something like a +9.00 Diopters I can tell you that your vision is crap but to know exactlly what you are seeing as far as 20/100 or 20/50 etc,no one could tell.

2007-03-08 16:09:11 by Ann F