The act or state of seeing double.

dou ble vision. laucoma - in creased intra ocular pressure that can result in optic nerve damage and loss of sight.

Seeing double. This is one of the more common sensory problems after head injury. It may result from dislocation of the eye or damage to the ocular muscles or the nerves.

disethesia dizziness drop attack dysphasia electroencephalogram (EEG) a technique for recording electrical activity in the brain. Useful in differential diagnosis of basilar artery migraine to rule out epilepsy and/or other neurological disorders.

a condition characterized by seeing multiple images. If the effect is with both eyes it is called binocular diplopia, but if occurring in only one eye it is monocular diplopia.

Seeing one object as if it were two.

visual impairment in which an object is seen as two objects; "diplopia often disappears when one eye is covered"

The condition in which a single object is perceived as two objects.