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L.A. Polikoff, R.A. Chanis, J. Ramos-Esteban, M. Fahim, D.J. Gagliuso, J.B. Serle; Effect of Laser Iridotomy on the Anterior Segment Anatomy of Patients with Plateau Iris Configuration . Invest. Ophthalmol. Vis. Sci. 2003;44(13):2194.
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Purpose: To describe anterior segment anatomy and effects of laser iridotomy (LI) in patients with plateau iris configuration. Methods: Both eyes of 8 female and 1 male patient with plateau iris configuration were imaged using a UBM (Paradigm) prior to and after LI. Measurements of the anterior chamber depth (ACD), trabecular-ciliary process distance (TCPD), iris thickness (IT), angle opening distance at 500 micrometers (µm) (AOD-500), posterior chamber depth (PCD), and trabecular-iris angle (TIA) were obtained. Baseline measurements and measurements after LI were compared using a two-tailed paired t-test. Results: Measurements prior to and following LI; View OriginalDownload SlideView OriginalDownload Slide † (p< 0.05), ‡ (p<0.05) pre-LI compared to post-LI. Conclusions: LI did not alter anterior chamber anatomy, probably because of the anterior insertion of the iris and ciliary body found in plateau iris configuration. The posterior chamber depth (PCD) decreased after LI, suggesting reduction of relative pupillary block.
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