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What are some causes of foggy vision?

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Quick Answer

Eye discharge, tears, particles in the eye, cataracts and corneal damage are common causes of foggy vision, which affects one or both eyes and involves hazy or unclear eyesight, according to Healthgrades. Less common causes include macular degeneration, optic nerve disease and diabetes.

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Full Answer

Possible causes of cloudy vision resulting from cornea damage include corneal inflammation, corneal infection, trauma, chemical burn and corneal dystrophy, in which fluid abnormally accumulates in the cornea, explains Healthgrades. Many people experience cloudy vision due to cataracts, which develop over the years and cause loss of transparency in the eye lens. Older people typically suffer cataracts, although some people develop them as an effect of long-term medications, diabetes or injury.

Migraines, an eye injury, dry eyes and myopia, or nearsightedness, are other potential causes of cloudy vision, states Healthgrades. People who experience cloudy vision may also notice dimming vision, diminished color perceptions and increased glare.

In rare cases, cloudy vision can indicate a dangerous medical condition, such as a brain tumor, retinal detachment, optic neuritis, glaucoma, or a corneal injury or infection, notes Healthgrades. Medical attention is required if cloudy vision follows trauma or a chemical injury or if it occurs with accompanying symptoms, such as eye pain, blindness and weakness.

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