gms | German Medical Science

25th Annual Meeting of the German Retina Society

German Retina Society

01.06. - 02.06.2012, Münster

Primary Vitrectomy with and without a buckle – VIPER Study Status report

Meeting Abstract

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  • Peter Walter - Universitäts-Augenklinik Aachen
  • VIPER Study Group - Universitäts-Augenklinik Aachen

German Retina Society. 25th Annual Conference of the German Retina Society. Münster, 01.-02.06.2012. Düsseldorf: German Medical Science GMS Publishing House; 2012. Doc12rg67

doi: 10.3205/12rg67, urn:nbn:de:0183-12rg675

This is the translated version of the article.
The original version can be found at:

Published: May 30, 2012

© 2012 Walter et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.



The VIPER Study is a randomized controlled multi center trial performed within the framework of The study is designed to evaluate the efficacy and safety of an additional encircling band in the treatment of pseudophakic retinal detachments with primary vitrectomy. 233 patients will be recruited in 15 sites and randomized to one of the following groups: 20 G ppV (n=100), 20 G ppV + encircling band (n=100), 23/25 G ppV (n=33). Primary outcome parameter is single surgery success after a follow-up of six months. Secondary parameters are best corrected visual acuity, refractive changes, and other side effects. Currently 92 patients are enclosed. A universal data bank management system is used to perform this study. We will explain the study design, recruitment data and preliminary results.