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| Scleral spur | |
|---|---|
 Enlarged general view of the iridial angle (Scleral spur appear at upper right) | |
| Details | |
| System | Visual system |
| Identifiers | |
| Latin | Calcar sclerae |
| Anatomical terms of neuroanatomy | |
The scleral spur in the visual system is a protrusion of the sclera (the white of the eye) into the anterior chamber. The spur is an annular structure composed of collagen in the human eye.
It is the origin of the longitudinal and circular fibres (which swerve acutely from the spur to run circumferentially, as a sphincter near the periphery of the lens)[1] of the ciliary muscle, and is attached posteriorly to the trabecular meshwork.
- ^ Gray's Anatomy: The Anatomical Basis of Clinical Practice (41st ed.). Elsevier. 2015. p. 693. ISBN 978-0-7020-5230-9.