0000000000559697

AUTHOR

Paul Appleton

showing 3 related works from this author

Fine Structural Evaluation of the Iris After Unilateral Treatment With Latanoprost in Patients Undergoing Bilateral Trabeculectomy (The Mainz II Stud…

2003

Objective To investigate by masked electron microscopy whether 6 months of topical latanoprost caused pathological changes in the peripheral iris of patients with glaucoma. Methods Seventeen patients with bilateral primary open-angle glaucoma requiring trabeculectomy were recruited for this study. The iridectomy taken during surgery on the first eye served as a control. The second test eye was treated topically with latanoprost for 6 months before its trabeculectomy. Fourteen patients completed the treatment arm of the study, and 1 of these underwent marked color change. As a result, 31 iridectomy specimens were fixed, coded, and evaluated. Results The specimens were evaluated for evidence …

Malemedicine.medical_specialtygenetic structuresAdministration Topicalmedicine.medical_treatmentEye diseaseIrisGlaucomaTrabeculectomyMelanocyteExfoliation Syndromechemistry.chemical_compoundDouble-Blind MethodOphthalmologymedicineHumansTrabeculectomyIris (anatomy)LatanoprostAntihypertensive AgentsAgedMelaninsbusiness.industryEye dropMiddle Agedmedicine.diseaseeye diseasesOphthalmologymedicine.anatomical_structurechemistryIridectomyProstaglandins F SyntheticLatanoprostMelanocytesFemalesense organsbusinessGlaucoma Open-AngleArchives of Ophthalmology
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Latanoprost-induced iris darkening: a morphometric study of human peripheral iridectomies.

2003

Abstract Purpose. This microscopic study was undertaken to compare the melanocytes of peripheral iridectomy specimens from two eyes that had latanoprost-induced iris darkening (LIID) with iridectomies taken from the fellow untreated eyes. Methods. The two patients in this study were the ones who underwent LIID in the latanoprost treated eye from a series of 17 patients requiring bilateral trabeculectomy. The first trabeculectomy procedure provided a control peripheral iridectomy for each patient, whereas the second eye was treated with once daily 50 μg ml−1 latanoprost drops for 6 months. The four peripheral iridectomy specimens from the two LIID patients were subjected to quantitative morp…

medicine.medical_specialtyIridectomygenetic structuresmedicine.medical_treatmentEye diseaseGlaucomaIrisTrabeculectomyMelanocyteBiologyExfoliation SyndromeMelaninCellular and Molecular Neurosciencechemistry.chemical_compoundOphthalmologymedicineTrabeculectomyHumansLatanoprostAntihypertensive AgentsIntraocular PressureMelanosomeMelaninsMelanosomesGranule (cell biology)Anatomymedicine.diseaseeye diseasesSensory SystemsOphthalmologyMicroscopy Electronmedicine.anatomical_structurechemistryIris DiseasesProstaglandins F SyntheticLatanoprostMelanocytessense organsStromal CellsPigmentation DisordersGlaucoma Open-AngleExperimental eye research
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Histology and Fine Structure of the Iris and Outflow System Following Latanoprost Therapy

2002

Latanoprost therapy can lead to iris darkening in susceptible individuals, particularly those with hazel eyes. Concerns have been raised about whether latanoprost, and for that matter other prostanoids, may have a harmful effect on the iris. In addition, it is unknown whether latanoprost causes increased pigmentation of the outflow pathways that might eventually lead to blockage and a type of pigmentary glaucoma. The present study summarizes findings from the authors' own laboratories on the effects of latanoprost as seen by light and electron microscopy of the iris and outflow tissues and reviews the as yet limited, relevant literature. The findings support the proposal that latanoprost-in…

medicine.medical_specialtygenetic structuresEye diseasemedicine.medical_treatmentIrisGlaucomaMelanocyteMelaninchemistry.chemical_compoundTrabecular MeshworkOphthalmologymedicineHumansTrabeculectomyIris (anatomy)LatanoprostAntihypertensive AgentsIntraocular PressureMelaninsEye Colorbusiness.industryfungiGlaucomamedicine.diseaseHyperpigmentationeye diseasesSurgeryOphthalmologymedicine.anatomical_structureIris DiseaseschemistryProstaglandins F SyntheticLatanoprostMelanocytessense organsmedicine.symptombusinessPigmentation DisordersSurvey of Ophthalmology
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