Everyday Health on MSN
Blurred Vision: 14 Potential Causes (and When to See a Doctor)
Learn about causes of gradual and sudden-onset blurred vision, from eyestrain and refractive errors to cataracts and strokes, ...
Night blindness (nyctalopia) refers to considerable difficulty seeing in poor light conditions. Night blindness is not a condition itself but rather a symptom of other types of vision conditions.
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