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Ophthalmology Lacrimal Apparatus and Eyelid Disorders 678f6216

Lysozyme and lactoferrin are present in which layer of tear film:-

A
Mucous layer
B
Aqueous layer
C
Lipid layer
D
All the layers
High-Yield Explanation
Lysozyme and lactiferrin are present in aqueous layer Aqueous layer Produced - 95% by main lacrimal gland 5% by accessory lacrimal gland of Krause and Wolfring Average aqueous tear flow - 1.2 ml /min Normal thickness - 7 mm Composition: -Water 98% -Lysozyme -Tear specific prealbumin -Immunoglobulin A -Other proteins(lactoferrin) Function: -Hydration -Lubrication -Antimicrobial action -Oxygenation -Mechanical debris removal

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