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18 Cards in this Set
- Front
- Back
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Keratitis sicca is what? |
Dry eyes |
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Keratoconjunctivitis sicca is what |
Affects the cornea, bulbar conj, and inner portion of lids. |
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What layer forms the bulk of the tear film and contains salts and proteins derived from the lacrimal glands and conj? |
Aqueous layer |
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What layer maintains wetabililty and traps shed epithelial cell, inflammatory cells, and debris? |
Mucin layer |
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What layer arises from a shallow resovoir and spreads with each blink? |
lipid layer |
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What are three types of tears? |
Basal (lubricate the cornea), reflex tears(eye responding to strong fragrance and foods), and emotional tears(response to strong emotions) |
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What is xerophthalmia? |
Dryness caused by a vitamin deficiency. |
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Sjorgens syndrome can cause? |
Dry eyes |
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Rose bengal tests shows what? |
Dryness of the cornea and conjunctiva |
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How is the But test performed (tearfilm breakup time) |
Instill flurescein into conj sac and observe the tear film. If it breaks up in 10 seconds or less than this is abnormal. |
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How are dry eyes graded? |
1-4, 4 being the worst. |
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What does cyclosporine (restasis) do? |
Decreases inflammation and increases tear reflex works in 3 to 4 months. |
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Schirmers 1 |
No anesthetics |
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Shirmers 2 |
Anesthetics |
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Three parts of tear film |
Mucin, lipid, aqueous |
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In tear osmolarity whats considered normal? |
308 and less |
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Normal blinking rate per minute? |
15-18 |
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A normal schirmers value in 5 min? |
10 mm |
