Nd:Yag laser iridotomy in Shaffer-Etienne grade 1 and 2:angle widening in our case studies
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1Department of Sense Organs, Sapienza University of Rome, Piazzale A. Moro 5, Rome 00185, Italy;
2Freelance Scientific Designer, Via N. Stame 127, Rome 00128, Italy

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    Abstract:

    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, 2-3 defocus, and 7-9 mJ intensity with 2-3 impulse discharges were used for surgery.RESULTS:From 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.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.

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Sandra Cinzia Carlesimo, Luigi Di Santo, Pietro Bruni, et al. Nd:Yag laser iridotomy in Shaffer-Etienne grade 1 and 2:angle widening in our case studies. Int J Ophthalmol, 2015,8(4):709-713

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Publication History
  • Received:February 20,2014
  • Revised:September 09,2014
  • Adopted:September 09,2014
  • Online: July 27,2015
  • Published: