![]() ![]() ![]() Other problems which cause a temporary loss of vision include: Vascular evaluation and possibly anti-coagulation (use of blood thinners) is indicated for this problem. ![]() This problem falls into the same category as "transient ischemic attacks" (or TIA's), which may herald a stroke. The embolus may be a cholesterol crystal, a calcium deposit, or a true blood clot. The source of the clot (or embolus) is usually from the carotid arteries leading up the neck to the brain, or from the heart. When the clot breaks up, the blood flow returns, as does the vision. The clot obstructs the blood flow to the retina, and the vision blacks-out. Most commonly, this happens in older people with arteriosclerosis and possibly vascular disease, and is due to small clots breaking off of the walls of arteries and then lodging in the vessels of the eye. The problem can recur in the future, and could affect either eye. The black-out may last minutes, and then the vision returns. This is usually affects one eye, is painless, and is often described like a "shade coming down over the vision" of that eye. Amaurosis FugaxĪmaurosis fugax refers to a temporary black-out of vision. Other conditions causing loss of vision found on other pages.Stroke (Cerebrovascular accident, or CVA).Links to Symptom and Diagnosis pages based on these other symptoms are included as well. Many other eye problems can cause a loss of vision along with other symptoms. These conditions are discussed on the Blurred Vision page. Many things that cause blurred vision can also cause a loss of vision, if the condition is severe enough. With these symptoms, there is almost always a cause for the visual loss other than a simple change in glasses. There may be large blind spots in the vision, or the appearance that something is blocking the vision. Here, loss of vision refers to a severe blurring of the vision in one or both eyes often to the point that almost no detail can be made out. Loss of Vision Ocular Symptoms and Conditions: Loss of VisionĪ loss of vision can be a frightening experience, and all people with a sudden loss of vision should be seen by an ophthalmologist as an emergency. ![]()
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