Diseases

Diplopia

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Monocular double vision is less common than binocular double vision and can be caused by the following conditions: astigmatism: the cornea is irregularly shaped (the transparent layer at the front of the eye). This causes a refractive error; in other words, the light is bent more, or less, than it should be.

SYMPTOMS

Misalignment of one or both eyes (a "wandering eye" or "cross-eyed" appearance), pain when you move your eye, pain around your eyes, like the temples or eyebrows, headache,nausea,weakness in your eyes or anywhere else,droopy eyelids.

CAUSES

Myasthenia gravis, an autoimmune illness that stops nerves from telling the muscles what to do. Early signs include double vision and drooping eyelids. Graves' disease, a thyroid condition that affects eye muscles. It can cause vertical diplopia, where one image is on top of the other.