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Related Experiment Video

Updated: Jul 3, 2026

Intense Pulsed Light for the Treatment of Dry Eye Owing to Meibomian Gland Dysfunction

Intense Pulsed Light for the Treatment of Dry Eye Owing to Meibomian Gland Dysfunction

Published on: April 1, 2019

Dry eye and designer ophthalmics.

Gordon W Laurie¹, Leslie A Olsakovsky, Brian P Conway

¹Department of Cell Biology, University of Virginia, Charlottesville, VA, USA.

Optometry and Vision Science : Official Publication of the American Academy of Optometry

|August 5, 2008

Summary

Human tear proteome analysis reveals unexpected complexity, with many intracellular proteins potentially offering insights into cellular health. Dry eye disease shows limited protein dysregulation, suggesting targeted therapies.

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Effect of Artificial Tear Formulations on the Metabolic Activity of Human Corneal Epithelial Cells after Exposure to Desiccation

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Published on: May 2, 2020

Area of Science:

Ophthalmology
Proteomics
Systems Biology

Background:

Tear film protein complexity is greater than previously understood.
Consensus is forming on the human tear proteome composition.
The source and function of intracellular tear proteins require further investigation.

Purpose of the Study:

To explore the complexity of the human tear proteome.
To investigate the significance of intracellular and extracellular tear proteins.
To identify potential disease-specific signatures in dry eye disease.

Main Methods:

Expressed sequence tag (EST) assays
Proteomic analysis
Antibody capture assays

Main Results:

A high level of tear film protein complexity has been revealed.
Approximately 256 "intracellular" tear proteins were identified, potentially from cellular turnover.
Over 183 "extracellular" proteins were identified, with only 4-5% dysregulated in dry eye disease.
Disease-specific protein signatures may exist.

Conclusions:

A systems biology approach is necessary to understand tear protein function.
Intracellular tear proteins may provide valuable diagnostic information.
Future dry eye treatments could involve personalized recombinant tear protein therapy.