Polaris Black submitted:
Double vision, or diplopia, occurs when a person sees a double image while looking at a single object. It may affect one eye (monocular diplopia) or both (binocular diplopia). In addition to being an obstacle to reading, double vision can also affect balance, movement, and navigating the world.
If the double vision is monocular, the problem is more likely to be within the eye and is likely to be less serious. It can be caused by cornea irregularities, lens abnormalities, insufficient tears, and retina degeneration. Depending upon the cause, treatments can include corrective lenses, surgery, and tears substitute.
If the double vision is binocular, the problem can be quite serious and should be diagnosed quickly. It can be caused by weak extra-ocular muscles, malfunctioning nerves, degenerative diseases, and brain injury. Depending upon the cause, treatments can include special eyewear like an eye patch or prism glasses, surgery, and medications.
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