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Updated: Jun 29, 2026
Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
Visualization of changes of the iris configuration after peripheral laser iridotomy in primary melanin dispersion
Robert Laemmer1, Christian Y Mardin, Anselm G M Juenemann
1Department of Ophthalmology, University of Erlangen-Nuremberg, Schwabachanlage, Erlangen, Germany. Robert.Laemmer@uk-erlangen.de
Abstract:
Pigment or melanin dispersion syndrome is characterized by radial iris transillumination defects, retrocorneal Krukenberg spindle, and dense trabecular pigmentation. Reverse pupillary block has been presumed as one possible pathogenetic mechanism for backward bowing of the iris leading to iris-zonular rubbing and distribution of melanin granules in the anterior chamber. Laser iridotomy is recommended as a treatment to prevent further melanin dispersion and development of pigmentary glaucoma. The effect of Nd:YAG laser iridotomy as a prophylactic and potentially causal treatment in melanin dispersion syndrome can be easily visualized by optical coherence tomography as a fast and noncontact procedure.
