Normal Lacritin Levels in Human Tears- Development of a New Clinical Assay

Exclusion Criteria

• •1. Irritated eye reflected by patient statements or finding of "red" eye.
• •2. Individuals with any infections or inflammatory ocular condition (e.g. have "pink eye" or uveitis).
• •3. Individuals diagnosed with dry eye or other ocular surface condition, including but not restricted to neurotrophic keratitis, anterior basement membrane dystrophy, and recurrent corneal erosions.
• •4. Individuals who are on any topical eye medications.
• •5. Anyone who reports previous reaction or the possibility of an allergic reaction to 0.5% proparacaine.