Which term refers to double vision affecting both eyes, typically due to misalignment or nerve issues?

Which term refers to double vision affecting both eyes, typically due to misalignment or nerve issues?

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

Answer: (B)

Double vision that involves both eyes happens when the eyes are not properly aligned or the nerves that control the eye muscles aren’t coordinating. Because the misalignment affects both eyes, the brain receives two different images and can’t fuse them into one, causing diplopia that disappears when either eye is closed. That’s what makes it binocular diplopia. In contrast, monocular diplopia persists with one eye open and usually points to an optical issue inside that eye, like a corneal or lens irregularity. Halos are visual phenomena around lights from ocular media problems, not diplopia, and total blindness means no vision at all.

Double vision that involves both eyes happens when the eyes are not properly aligned or the nerves that control the eye muscles aren’t coordinating. Because the misalignment affects both eyes, the brain receives two different images and can’t fuse them into one, causing diplopia that disappears when either eye is closed. That’s what makes it binocular diplopia. In contrast, monocular diplopia persists with one eye open and usually points to an optical issue inside that eye, like a corneal or lens irregularity. Halos are visual phenomena around lights from ocular media problems, not diplopia, and total blindness means no vision at all.