Nd: Yag laser iridotomy in Shaffer-Etienne grade 1 and 2: angle widening in our case studies

• 作者: Aloisa Librando Andrea Barbato Antonietta Pompea Falace Luigi Di Santo Pietro Bruni Sandra Cinzia Carlesimo
• 来源期刊: 国际眼科杂志：英文版
• 学科: 医学
• 关键词: GLAUCOMA GONIOSCOPY INTRAOCULAR pressure iridotomy NARROW ANGLE Nd:Yag laser
• 年，卷（期）: 2015,（4）
• 页码范围: 709-713
• 页数: 5页
• 分类号: R779.6

摘要

·AIM: To 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.·METHODS: Between 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, 2-3defocus, and 7-9 m J intensity with 2-3 impulse discharges were used for surgery.·RESULTS: From as early as the first week, a whole360° 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.·CONCLUSION: Nd: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.