What term describes a condition where you can no longer see light?

What term describes a condition where you can no longer see light?

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

Answer: (C)

Total blindness is the term for having no light perception at all. It means the person cannot detect any light source, so vision is completely absent. The other terms don’t describe that level of light perception: monocular refers to one eye or one-eyed involvement, not the inability to perceive light; halos are visual disturbances around bright lights seen in certain eye conditions; binocular means involving both eyes, not the depth of light detection. In practice, a simple bedside check is to test light perception by presenting a bright light and seeing if the person detects it; no response from either eye indicates total blindness.

Total blindness is the term for having no light perception at all. It means the person cannot detect any light source, so vision is completely absent. The other terms don’t describe that level of light perception: monocular refers to one eye or one-eyed involvement, not the inability to perceive light; halos are visual disturbances around bright lights seen in certain eye conditions; binocular means involving both eyes, not the depth of light detection. In practice, a simple bedside check is to test light perception by presenting a bright light and seeing if the person detects it; no response from either eye indicates total blindness.