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Target intelligence / Profile preview
Tear Film (Air-Liquid Interface)
- Molecular classification
- Lipid Layer, Aqueous-Mucin Layer, Glycocalyx/Mucus Layer, Biological Fluid
01
Overview
The tear film is a thin, multi-layered fluid coating that covers the ocular surface, forming the critical air-liquid interface at the front of the eye. This interface is essential for maintaining optical clarity, protecting against environmental insults, and supporting ocular surface health. Its main components include a lipid layer, an aqueous-mucin layer, and a glycocalyx/mucus layer. Dysfunction of the tear film, especially at the air-liquid interface, can lead to dry eye disease, visual instability, and increased susceptibility to infection.
- Other names
- Precorneal filmOcular surface fluidAir-tear film interface
02
Biological functions
Optical clarityEvaporation barrierLubricationAntimicrobial defenseWound healingHomeostasisRefractive power
03
Disease associations
Dry eye diseaseOcular surface diseaseInfectionInflammationVisual disturbances
04
Safety considerations
Disruption leads to increased evaporationThinning leads to visual disturbancesInstability increases susceptibility to infection
05
Biomarkers
Lipid layer thicknessTear breakup time
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