Diplopia (Double Vision)

Diplopia, or double vision, is the perception of two images of the same object, either with both eyes open or with just one. It can be occasional or persistent and, in some cases, signal a problem that requires attention.

How it presents: the images may appear side by side, one on top of the other, or tilted; it is sometimes accompanied by dizziness, headache, or difficulty focusing.

Common causes: these range from problems in the muscles that move the eye or refractive errors to neurological conditions.

Which specialist treats it? The ophthalmologist is the professional who investigates the cause of double vision, with support from the optometrist in the visual assessment. When diplopia appears suddenly or is accompanied by other symptoms, it is prudent to seek an evaluation without delay from a vision professional.