Definitions for "Double vision"
visual impairment in which an object is seen as two objects; "diplopia often disappears when one eye is covered"
diplopia) Seeing 'double' is usually due to an over or underaction of one of the muscles that surround an eye. This does not allow both eyes to point in the same direction. Any sudden appearance of double vision should be investigated by an eye doctor.
Also called diplopia. When two images of the same object are perceived by one or both eyes. Please click to the Eye Symptoms A-Z page for a list of the usual causes of seeing double.