Nd:Yag laser iridotomy in Shaffer-Etienne grade 1 and 2:angle widening in our case studies |
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Authors: | Sandra Cinzia Carlesimo Luigi Di Santo Pietro Bruni Aloisa Librando Antonietta Pompea Falace and Andrea Barbato |
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Institution: | Department of Sense Organs, Sapienza University of Rome, Piazzale A.Moro 5, Rome 00185, Italy;Freelance Scientific Designer, Via N.Stame 127, Rome 00128, Italy;Department of Sense Organs, Sapienza University of Rome, Piazzale A.Moro 5, Rome 00185, Italy;Department of Sense Organs, Sapienza University of Rome, Piazzale A.Moro 5, Rome 00185, Italy;Department of Sense Organs, Sapienza University of Rome, Piazzale A.Moro 5, Rome 00185, Italy;Department of Sense Organs, Sapienza University of Rome, Piazzale A.Moro 5, Rome 00185, Italy |
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Abstract: | AIMTo obtain widening of a potentially occludable angle, in according to Kanski''s indications, through preventive Nd:Yag laser iridotomy. The observational study was performed by using gonioscopy for the selection and follow-up of 1165 treated eyes and exploiting Shaffer-Etienne gonioscopic classification as a quality/quantity test of the angle recession.METHODSBetween September 2000 and July 2012, 586 patients were selected at the Outpatients'' Ophthalmological Clinic of the Policlinico Umberto I of Rome in order to undergo Nd: Yag laser iridotomy. A Goldmann type contact lens, Q-switched mode, 2-3 defocus, and 7-9 mJ intensity with 2-3 impulse discharges were used for surgery.RESULTSFrom as early as the first week, a whole 360° angle widening were evident in the patients, thus showing the success of Nd:Yag laser iridotomy in solving relative pupil block. The angle remained narrow by 270° in 14 eyes only, despite repetitions of further treatment with laser iridotomy in a different part of the iris, twice in 10 eyes and three times in 4 eyes.CONCLUSIONNd:Yag laser iridotomy revealed itself as being a safe and effective treatment in widening those critical Shaffer-Etienne grade 1 and 2 potentially occludable angles. |
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Keywords: | glaucoma gonioscopy intraocular pressure iridotomy narrow angle Nd:Yag laser |
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