Lysozyme and lactoferrin are present in which layer of tear film:-
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
Mucous layer
Aqueous layer
Lipid layer
All the layers
Lacrimal Apparatus and Eyelid Disorders