double vision

The Double vision - Also known as diplopia, double vision is a condition in which a person sees two visual images of a single object instead of only one image. The two images are separate, but each of them is quite clearly focused.

It is usually a symptom of a squint, especially of paralytic squint, in which paralysis of one or more of the eye muscles impairs eye movement. Other causes include a tumour in the eyelid or a tumour or blood clot behind the eye. Double vision can also occur in exophthalmos, when the eyeballs protrude as the result of an underlying hormonal disorder.

Double vision needs immediate investigation. The treatment depends on the underlying cause.


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