In some cases double vision cannot be corrected and people are left with two images. An individual could wear an eye patch or in extreme cases have an eyelid shut but that is not usually preferred for cosmetic reasons. We can make contact lenses to occlude or blur the vision of one of the eyes so the patient can only see one image. Conditions that affect the muscles that move the eye or damage the nerves that control these muscles cause intractable double vision such as thyroid eye disease, trauma and facial surgery.
