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Several classes of medications (both prescription and OTC) have been hypothesized as a major cause of dry eye, especially in the elderly. Particularly, anticholinergic medications that also cause dry mouth are believed to promote dry eye. [25] Dry eye may also be caused by thermal or chemical burns, or (in epidemic cases) by adenoviruses.
Because the disorder often occurs in people with typical dry eye symptoms, it can be difficult to readily distinguish the discomfort caused by the dry eye from that directly related to the redundant conjunctiva. Mechanical dry eye should not be confused with aqueous tear deficiency dry eye or delayed tear clearance. [5]
Xerophthalmia (from Ancient Greek xērós (ξηρός) meaning "dry" and ophthalmos (οφθαλμός) meaning "eye") is a medical condition in which the eye fails to produce tears. It may be caused by vitamin A deficiency, [1] which is sometimes used to describe that condition, although there may be other causes.
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In addition, people with dry macular degeneration often do not experience any symptoms but can experience gradual onset of blurry vision in one or both eyes. [15] [16] People with wet macular degeneration may experience acute onset of visual symptoms. [15] [16]
Experts break down what's causing your eye irritation — and how to protect your peepers. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ...
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