PMID: 8594516Feb 1, 1996Paper

Location of the iris insertion in pigment dispersion syndrome

Ophthalmology
J SokolR Ritch

Abstract

To evaluate the position of the iris insertion into the ciliary body in persons with pigment dispersion syndrome (PDS) and control subjects. Ultrasound biomicroscopy was performed on 19 eyes with PDS and on 21 eyes of control subjects. A radial, perpendicular image in the temporal meridian detailing Schwalbe line (SL), scleral spur (SS), and iris root insertion (IR) was obtained for each eye by a single examiner. The distances between these structures then was measured. There were no differences between the groups in refractive error (mean +/- standard error, -2.8 +/- 0.7 diopters for PDS eyes versus -2.2 +/- 0.6 for control subjects) (P=0.46), sex distribution (P=0.49), and trabecular meshwork height (SL to SS) (0.63 +/- 0.03 mm [PDS eyes] versus 0.59 +/- 0.03 [control eyes]; P = 0.24). The SS-to-IR distance was significantly greater in PDS eyes (0.04 +/- 0.04 mm) than in control eyes (0.28 +/- 0.04 mm) (P=0.01) as was the overall distance from SL to IR (0.98 +/- 0.04 mm versus +/- 0.04 mm) (P = 0.003). The insertion of the iris into the ciliary body is more posterior in PDS eyes than in control eyes. This anatomic variation places the iris pigment epithelium proximal to the zonular apparatus and may increase the likelihood of...Continue Reading

References

Nov 15, 1992·American Journal of Ophthalmology·P WeseleyR Ritch
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Aug 1, 1985·Ophthalmic Paediatrics and Genetics·R M MandelkornD Harsha
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Citations

Jun 13, 2001·Acta Ophthalmologica Scandinavica·B HaargaardO I Nissen
Jan 11, 2002·Journal of Biomechanical Engineering·J J HeysM J Taravella
Sep 23, 1998·American Journal of Ophthalmology·M KüchleG O Naumann
Mar 1, 1997·Survey of Ophthalmology·A Anton, R N Weinreb
Jul 26, 2002·Journal of Glaucoma·Robert RitchJeffrey M Liebmann
Jul 2, 2005·Journal of Glaucoma·Chet E ReistadUNKNOWN American Glaucoma Society Pigmentary Glaucoma Iridotomy Study Group
Jan 15, 2009·Journal of Glaucoma·Leonard W YipFrederick S Mikelberg
Feb 19, 2010·Journal of Glaucoma·Elyse Trastman-CarusoRobert Ritch
Mar 13, 2009·Clinical & Experimental Ophthalmology·Nuwan Niyadurupola, David C Broadway
May 5, 2017·PloS One·Masato MatsuuraRyo Asaoka
Jun 10, 2000·Current Opinion in Ophthalmology·H IshikawaR Ritch
Oct 27, 2017·Acta Ophthalmologica·Mu LiHong Zhang
May 4, 2018·International Ophthalmology·Gianluca ScuderiSiavash Rahimi

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