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Eye Test - The Eye Chart and 20/20 Vision Explained


What does 20/20 vision really mean? Various eye charts and tests can be used to determine your visual acuity.

Test your vision - Essilor


Can you see properly? To find out, there is nothing better than taking a test! The test for far sighted vision is probably the best known. Thanks to this test, you can ...

Low Vision and Legal Blindness Terms and Descriptions ...


My VisionAware ... Here is one definition of low vision, related to visual acuity: ... Visual acuity is a number that indicates the sharpness or clarity of vision.

I know my eyeglasses perscription, but how far am I from 20/20 ...


I have no idea what my perscription number means, except that the higher it is the worse my vision is. I'm wondering if there's some formula I ...

Vision (eyesight): Is -4.5 eye number very large? What does it mean ...


My eye sight is very poor, but with correcting lenses my vision is good. ... The number '”-4.5″ is not a “very large number” Many researchers consider “-5” as ...

How do the numbers 20/? relate to my prescription? - Eye Care ...


Aug 1, 2008 ... My prescription for my glasses is about -13.5 in my left eye and -12.5 in ... and/or less than 20 degrees in terms of peripheral vision/visual field.

What is 20/20 vision? What is 20/40 vision? - Eye Care Fun


The smaller the second number, the better vision you have, so 20/20 is not actually .... My eye prescription is -4.75 that puts me between 20/200 & 20/600, right?

Precision Vision: Quality Vision Testing Tools


Precision Vision has provided quality vision testing tools for more than 40 years to researchers and eye care professionals around the world.

Astigmatism - American Optometric Association


Find My State/Affiliate ... Astigmatism is a common vision condition that causes blurred vision. It occurs when the ... The top number is the standardized testing distance (20 feet) and the bottom number is the smallest letter size read. A person ...

Myopia (Nearsightedness) - American Optometric Association


Find My State/Affiliate ... Nearsightedness, or myopia, as it is medically termed, is a vision condition in which people can see close objects clearly, ... The top number of the fraction is the standard distance at which testing is performed (20 feet).

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How To Read Your Eyeglass Prescription - All About Vision


But what do all those numbers on your eyeglass prescription mean? And what about all those ..... Click here to visit My LASIK Journey. About the LASIK ...

How the 20/20 Vision Scale Works - Today I Found Out


Dec 31, 2013 ... So imagine my surprise when I was told during my first Australian eye ... number of people, American ophthalmologists decided on the 20/20 ...

What is 20/20 Vision? How to Convert Diopters to a 20/20 Measure


We all hear the term 20/20 vision thrown about to mean anyone who has healthy ... I started seeing an improvement in my vision after a couple of weeks.