Other names: diplopia

Double vision is technically called diplopia and may be a monocular, meaning that applies when viewed with only one eye or the binocular which occurs when viewed with both eyes.

Monocular diplopia occurs when some failure unilateral eye, such as cataracts – looking affected eye can see “ghosts”. Binocular diplopia occurs when failure souhybu eyes. Each eye is controlled six extraocular muscles, which have to be perfectly matched with each other and with double-sided muscles to images from both eyes could brain spatially correctly evaluated. If there is a mismatch between extraocular muscles, images from each eye with each shift and as a result we see double.Double vision, however, may not show all the time but only in certain positions of the eyes, for example, while looking up, etc., Depending on which has a reduced muscle function.

What diseases can cause double vision? It is for example myasthenia gravis, autoimmune diseases, in which there is destruction of these places on the muscle, which leads to nerve transmission to the muscle. Muscles are so if weak, insufficiently to contract when attempting to move, and if it oculomotor muscles show double vision which occurs in particular when fatigue unwind, vision improves.

Double vision may also be a result of failure of the one of the oculomotor nerve, for example, as a result of intracranial hemorrhage, stroke or injury.

The cause double vision provides a neurologist.