Vision Problems
Alternate Names : Blurred Vision, Decreased Vision, Diminished Eyesight, Impaired Vision, Vision Impairment
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Vision Problems: Common Causes
- presbyopia, the difficulty focusing at near which is a normal part of aging
-
cataracts (common in the elderly)
-
glaucoma
- complications of diabetes (the most common cause of blindness in the United States)
- macular degeneration is a common cause of loss of central vision in the elderly
- eye infection, inflammation, or injury
- infections of the cornea that cause scarring, distortion, or perforation
- Trachoma, an infection common in many undeveloped areas in the world, is among the most frequent causes of blindness in the world
- infections of the retina with viruses, fungi, or parasites -- seen with increasing frequency in AIDS patents in the past, but now much less common with modern drug therapy
- floaters (tiny particles) drifting across the eye
- usually are harmless and require no treatment
-
fatigue and prolonged exposure to the outdoors (temporary and reversible blurring of vision)
- drugs (blurring, spots, and halos)
- anticholinergics
- antihistamines
- clomiphene
- chloroquine
- cycloplegic
- digitalis derivatives (temporary)
- ethambutol
- guanethidine
- indomethacin
- methanol toxicity (permanent)
- phenothiazines
- phenylbutazone
- quinine sulfate
- reserpine
- thiazide diuretics
-
migraine
headaches (spots of light, halos, or zigzag patterns are common preliminary symptoms)
- ophthalmic migraine may occur where only the visual symptoms occur, without headache
- congenital disorders
- heritable disorders
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