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1 General aspects (0)   1.1 Epidemiology (6)   1.2 Population genetics (0)   1.3 Pathogenesis (4)   1.4 Quality of life (6)   1.5 Glaucomas as cause of blindness (1)   1.6 Prevention and screening (3) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (3)   2.2 Cornea (5)   2.3 Sclera (2)   2.4 Anterior chamber angle (2)   2.5 Meshwork (1)     2.5.1 Trabecular meshwork (8)     2.5.2 Schlemms canal (2)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (2)     2.6.2 Outflow (4)       2.6.2.1 Trabecular meshwork (0)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (1)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (0)   2.9 Ciliary body (0)   2.10 Lens (0)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (1)   2.13 Retina and retinal nerve fibre layer (11)   2.14 Optic disc (9)   2.15 Optic nerve (4)   2.16 Chiasma and retrochiasmal central nervous system (0)   2.17 Stem cells (0)   2.20 Other (0) 3 Laboratory methods (10)   3.1 Microscopy (1)   3.2 Electron microscopy (5)   3.3 Immunohistochemistry (9)   3.4 Molecular genetics (1)     3.4.1 Linkage studies (16)     3.4.2 Gene studies (2)   3.5 Molecular biology incl. 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Abstract #11436 Published in IGR 6-3

Analysis of irises with a latanoprost-induced change in iris color

Arranz-Marquez E; Teus MA; Saornil MA; Mendez MC; Gil R
American Journal of Ophthalmology 2004; 138: 625-630

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PURPOSE: To study the histologic aspects of irises subjected to extended latanoprost treatment. DESIGN: Prospective, observer-masked study. METHODS: Iris biopsies of eyes treated with latanoprost were analyzed (all had a photographically documented increase in iris pigmentation) plus control eyes (untreated with prostanoids) using optical microscopy. PATIENT OR STUDY POPULATION: There were 14 study eyes treated with latanoprost and 8 untreated control eyes. MAIN OUTCOME MEASURE: The morphologic characteristics of the irises. RESULTS: The irises treated with latanoprost had an increased number of melanocytes with nuclear inclusions, granules of melanin in the vascular walls and the melanocytes and free granules in the stroma compared with control eyes (P = .001, P = .01, P = .004, P = .01, respectively, by the Χ₂ test). CONCLUSIONS: Chronic therapy with latanoprost appears to induce more changes in the iris than a simple increase in the melanin content of the melanocytes.

Dr. E. Arranz-Marquez , Hospital Oftalmologico Internacional de Madrid, Madrid, Spain. esther-arranz@ole.com

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Classification:

11.4 Prostaglandins (Part of: 11 Medical treatment)

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