A person who cannot perceive any light in either eye would be described as having which condition?

A person who cannot perceive any light in either eye would be described as having which condition?

• A. Monocular
• B. Halos
• C. Total Blindness
• D. Binocular

Answer: (C)

Light perception status across both eyes determines this classification. If a person cannot perceive any light in either eye, that is total blindness—the complete absence of light perception in both eyes. Monocular describes when vision is reduced or absent in one eye but not the other. Halos are visual phenomena that can occur with certain eye conditions but do not define blindness. Binocular means involving both eyes, but does not by itself specify whether light is perceived; someone can have binocular vision with some light perception, or no light perception in both eyes. Therefore, the precise descriptor for no light perception in either eye is total blindness.

Light perception status across both eyes determines this classification. If a person cannot perceive any light in either eye, that is total blindness—the complete absence of light perception in both eyes. Monocular describes when vision is reduced or absent in one eye but not the other. Halos are visual phenomena that can occur with certain eye conditions but do not define blindness. Binocular means involving both eyes, but does not by itself specify whether light is perceived; someone can have binocular vision with some light perception, or no light perception in both eyes. Therefore, the precise descriptor for no light perception in either eye is total blindness.