The following is an excerpt....
BASICS
Description
- Diseases and abnormalities of tear production and maintenance of tear film
- The most common lacrimal disorder is dry eye syndrome.
- Lacrimal duct disorders usually result in overflow tearing.
- System(s) affected: Skin/Exocrine
Epidemiology
Prevalence
Very common throughout US, more often seen in arid climates:
- Predominant gender: Female > Male
- Predominant age: Dry eye symptoms increase with age; most often seen in elderly
Risk Factors
- Exposure to dry environments
- History of collagen vascular disease, such as rheumatoid arthritis, Sjögren syndrome, thyroid disease, rosacea, Bell palsy, eyelid abnormalities
- Oral contraceptive, diuretic, β-blocker, and antihistamine use
- Vitamin A deficiency
General Prevention
- Prevent exposure to eye irritants from pollution, cigarette smoke, and sun exposure.
- Ensure adequate vitamin A intake through diet ...
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