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A member asked:
Is 20/400 in both eyes better or worse than 20/200? i am trying to determine if i am considered legally blind using the following definition "if your vision cannot be corrected to better than 20/200 in your better eye, or if your visual field is 20 degree
2 doctors weighed in across 2 answers
The : The vision scale works like this. Consider the first number to be x and the second to be y. When you are looking at something x feet away, you are able to discern it as though it is at y feet away. So with 20/400 vision. You see an object at 20 feet away as well as someone with good vision can see something 400 feet away. So, 20/400 is worse than 20/200.
Answered 12/28/2020
5.4k views
Worse: 20/400 is worse than 20/200. Legal blindness is the vision with the best glasses possible. The term is used incorrectly often (as in "i am legally blind without my glasses").
Answered 10/9/2017
5.4k views
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