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Sudden vision loss is a medical emergency. Sudden vision loss means a swift, usually unexpected, loss of the ability to see well or to see at all. It can happen in seconds, minutes or even over a few days. It can happen in one eye or both eyes.
This article discusses the types of vision loss, and their symptoms and causes. It explains treatment, prevention, and outlook for vision loss, and answers some frequently asked questions.
You can temporarily lose your vision, totally or partially, due to another condition. The possible causes and what you should do depend on whether you can see at all. If you have sudden total, or...
In the U.S., 50 million adults have experienced some sort of vision loss. Around the globe, there are an estimated 1.1 billion people with vision impairment. Among those, 43 million are blind, and 295 million have moderate to severe visual impairment. Some vision loss happens suddenly.
Loss of vision is considered sudden if it develops within a few minutes to a couple of days. It may affect one or both eyes and all or part of a field of vision. Loss of only a small part of the field of vision (for example, as a result of a small retinal detachment) may seem like blurred vision.
Vision loss refers to either complete or partial loss of vision. Depending on the cause, vision loss may occur suddenly or gradually, and in one or both eyes.
Blindness is the inability to see or a lack of vision. In the most severe cases, there’s an inability to see even light. It also means that you can’t correct your vision with eyeglasses, contact lenses, eye drops or other medical therapy, or surgery. Sudden vision loss is an emergency. It’s important to seek immediate medical help.