Table 1.

Dry eye symptoms and diagnostic tests.

Common Dry Eye Symptoms
Irritation	Burning or stinging sensation
Dryness or grittiness	Foreign body sensation
Itching and Redness	Tearing
Fluctuation of vision	Contact lens intolerance
Increased blinking frequency	Blurry vision
Photophobia	Mucous discharge
Dry Eye Diagnostic Tests
Tear Break Up Time (BUT)	Tear film meniscus height
Ocular surface staining with fluorescein, lissamine green, and rose bengal dye	Schirmer test I and II
Other tests: tear film osmolarity, lactoferrin, lysozyme immunoglobulin, and albumin dosage, and impression cytology.