Abstract #84283 Published in IGR 21-1

The Probable Mechanism of Traumatic Angle Recession and Cyclodialysis

Pujari A; Selvan H; Behera AK; Gagrani M; Kapoor S; Dada T
Journal of Glaucoma 2020; 29: 67-70

During blunt ocular trauma, the anteroposterior compressive forces confronted lead to consequent equatorial expansion of the globe. This may result in ciliary body trauma, typically manifesting as angle recession or cyclodialysis. The authors hypothesize that a likely asymmetric contraction between the longitudinal and circular ciliary fibers, and an intrinsic weak "oblique buffer zone" creates a plane of separation between the 2, resulting in angle recession. When stronger forces are met with, the equatorial expansion of the sclera may outperform the ability of the ciliary body to follow it, and the taut longitudinal ciliary fibers may subsequently disinsert from the scleral spur causing cyclodialysis. In addition to this, the routinely thought dismembering aqueous jets directed toward the angle may also accentuate ciliary body trauma. Therefore, the vivid distractive external forces along with the complex ciliary muscle anatomy and differential functionality may play a crucial role in causation of post-traumatic angle recession and cyclodialysis.

Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.

Full article


12.11 Cyclodialysis (Part of: 12 Surgical treatment)
3.9 Pathophysiology (Part of: 3 Laboratory methods)
9.4.7 Glaucomas associated with ocular trauma (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders)
2.4 Anterior chamber angle (Part of: 2 Anatomical structures in glaucoma)

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