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What are some causes of sudden blurred vision?

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Quick Answer

Several causes of sudden blurred vision include wet macular degeneration, uveitis, iritis, eye strain and brain trauma, as listed by Health Hype. Some causes require simple treatments, while others are more severe eye disorders that potentially lead to permanent vision problems.

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What are some causes of sudden blurred vision?
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Full Answer

Macular degeneration is a chronic condition affecting the macula that gradually decreases central vision over time and causes blurred spots in vision, according to Health Hype. The wet variety in which blood and fluid leak into the macula is more likely to cause a sudden onset of symptoms than the dry variety. Uveitis and iritis refer to inflammation of the uvea and iris, respectively. Their symptoms include blurred vision and discomfort in the eye, and they can occur as acute or chronic conditions.

Eye strain is one of the most common blurred vision causes, resulting from long hours spent staring at a computer screen, reading, watching TV and performing similar activities in a poorly lit environment, as Health Hype explains. Other symptoms may include tiredness in the eyes and eyelids, watery eyes, and a dull ache. Stroke, brain tumors and traumatic injuries to the brain can also cause blurred vision because they interrupt the light signals carried from the retina to the brain through the optic nerve. Blurred vision occurs suddenly in trauma patients, while tumor patients experience a more gradual development. Anyone who experiences sudden blurred vision should consult a doctor immediately for diagnosis and treatment.

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