what are causes of double vision
Find local eye doctor to get an eye exam. 1  Cataracts. Cataracts may cause ghost images, usually in one eye only. 2  Cranial nerve palsies. Double vision also can be caused by paralysis or loss of coordination of one or more muscles that control the position and teaming of the eyes due to a cranial nerve palsy.
This type of short-term double vision is usually not cause for worry. But if the diplopia is long-lasting or keeps coming back, reasons for it can include: Stroke, head injury, brain tumor, brain swelling or brain aneurysm. A head injury, tumor, stroke or related condition can cause double vision that comes on suddenly.