A complete lack of light perception is termed what?

A complete lack of light perception is termed what?

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

Answer: (C)

Total blindness is the term for a complete lack of light perception. It means no light is detected by either eye, so the person cannot see even the smallest light stimulus. Monocular describes a condition affecting one eye (the other may still perceive light), so it doesn’t capture the idea of total absence. Halos are visual phenomena around bright lights and don’t indicate a lack of light perception. Binocular refers to involvement of both eyes and is about vision status across both eyes rather than the absence of light. So the description of no light perception fits total blindness best.

Total blindness is the term for a complete lack of light perception. It means no light is detected by either eye, so the person cannot see even the smallest light stimulus. Monocular describes a condition affecting one eye (the other may still perceive light), so it doesn’t capture the idea of total absence. Halos are visual phenomena around bright lights and don’t indicate a lack of light perception. Binocular refers to involvement of both eyes and is about vision status across both eyes rather than the absence of light. So the description of no light perception fits total blindness best.