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Keratocytes: no more the quiet cells
M C Snyder1, J P Bergmanson, M J Doughty
1Texas Eye Research and Technology, University of Houston, College of Optometry, USA.
Journal of the American Optometric Association
|April 29, 1998
Summary
Corneal keratocytes are active cells crucial for corneal transparency and wound healing. Maintaining keratocyte health is vital for successful laser refractive procedures and preventing corneal haze.
Area of Science:
- Ophthalmology
- Cell Biology
- Corneal Science
Background:
- Corneal keratocytes were traditionally viewed as quiescent stromal cells.
- Recent research and laser refractive surgery necessitate a re-evaluation of their role.
Purpose of the Study:
- To review current knowledge on keratocyte function and clinical relevance.
- To assess the impact of new findings on understanding corneal biology.
Main Methods:
- Literature review of recent scientific papers.
- Integration of laboratory observations with published data.
Main Results:
- Keratocytes regulate stromal components, maintain corneal transparency, and organize lamellar structure.
- Keratocytes form a communicating network essential for orchestrating wound healing.
- Anterior keratocyte loss due to injury (e.g., excimer laser) leads to replacement by cells that may cause scarring and haze.
Conclusions:
- Keratocytes are critical in both healthy and injured corneas.
- Successful laser refractive surgery outcomes depend on preserving keratocyte health and managing replacement cell activity.