Which condition is defined as seeing two objects when you should be seeing one?

Which condition is defined as seeing two objects when you should be seeing one?

• A. Eye Redness
• B. Diplopia
• C. Blepharitis
• D. Entropion

Answer: (B)

Seeing two objects when you should be seeing one is diplopia, or double vision. It happens when the two eyes don’t align so the brain can fuse their images into a single scene. If double vision goes away when one eye is closed, it’s usually due to binocular diplopia from eye misalignment or a nerve/muscle issue affecting eye movements; if it stays with one eye closed, it points to an error in the optical path of that eye. The other options relate to eyelid or surface problems (redness from irritation, eyelid inflammation, or inward turning of the eyelid) and do not describe seeing two images.

Seeing two objects when you should be seeing one is diplopia, or double vision. It happens when the two eyes don’t align so the brain can fuse their images into a single scene. If double vision goes away when one eye is closed, it’s usually due to binocular diplopia from eye misalignment or a nerve/muscle issue affecting eye movements; if it stays with one eye closed, it points to an error in the optical path of that eye. The other options relate to eyelid or surface problems (redness from irritation, eyelid inflammation, or inward turning of the eyelid) and do not describe seeing two images.