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.
Although we understand the biblical phrase eye for an eye to mean retribution, it was originally intended as an appeal to restrict the degree of punishment to fit that of the crime. Conversely, when we see eye to eye, it means agreement, and in the eyes of (the law, others, the world) it means opinion.