10 Frequently Asked Questions About Sudden Loss of Vision

3. Is sudden loss of vision permanent?

Unfortunately, the range of variables involved in the diagnosis of sudden vision loss prevent an accurate prediction of whether vision loss will be permanent or not. For many people, the best they can hope for is a minor improvement. Ocular ischemic syndrome, for example, is incurable and treatment can provide minor relief at most. On the other hand, migraine headaches can also cause sudden vision loss or complete blindness, but the symptoms usually resolve themselves after a migraine passes. Sudden loss of vision is generally a medical emergency and calls for immediate treatment.

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