There are three classification systems for individuals with visual impairment that are used by education professionals. To be declared legally blind, an individual must have visual acuity of 20/200 or less, or have a field of vision restricted to 20 degrees or less at the widest point. However, this federal classification system is used primarily to determine eligibility for adult agency services.
have an eye for something. to be good at noticing a particular type of thing She has an eye for detail. He had an eye for the unusual and the exotic which made him a very good shopping companion. See also: an, eye, for, have.
[count] : the part of the body that you see with. 1  Her eyes slowly became accustomed to the dark. 2  He wears a patch over one eye. 3  I have something in my eye.  He has (a pair of) bright blue 1  eyes. bright/sad/sleepy eyes.  She has good/strong/bad/weak eyes. [= 1 eyesight] Her eyes lit up [=she looked excited and happy] when he showed her the  ring.