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Collagen fibrils as skeletal frame in monkey trabecular meshwork
1Department of Ophthalmology, Aichi Medical University, Japan.
Japanese Journal of Ophthalmology
|January 1, 1994
Summary
This study reveals the collagenous framework of the trabecular meshwork in monkey eyes. It details how collagen bundles form the eye's drainage system, crucial for understanding intraocular pressure.
Area of Science:
- Ophthalmology
- Cell Biology
- Biomaterials Science
Background:
- The trabecular meshwork (TM) is a complex eye tissue responsible for aqueous humor outflow.
- Understanding the structural components of the TM is vital for diagnosing and treating glaucoma.
Purpose of the Study:
- To elucidate the three-dimensional architecture of collagen bundles within the trabecular meshwork.
- To identify the characteristic skeletal framework of the TM and its continuity with adjacent ocular structures.
Main Methods:
- NaOH cell-maceration technique applied to the anterior segment of cynomolgus monkey eyes.
- Microscopic analysis of collagen fibrillar bundle organization.
Main Results:
- Collagen bundles in the TM are continuous with peripheral corneal lamellae and the ciliary body's collagen fibril plexus.
- The TM's framework consists of layered collagen bundles, with corneoscleral sheets arranged circularly.
- The endothelial meshwork and inner wall of Schlemm's canal exhibit sparse collagen fibrils with openings potentially related to giant vacuole development.
Conclusions:
- Collagen bundles form the fundamental, layered framework of the trabecular meshwork.
- The structural arrangement of collagen in the TM influences aqueous humor outflow pathways.
- Observed openings in Schlemm's inner wall may correlate with giant vacuole formation, impacting fluid dynamics.