gms | German Medical Science

22nd International Congress of German Ophthalmic Surgeons

18. to 21.06.2009, Nürnberg

Tranconjunctival Suturless 23 Gauge Vitrectomy: modified two-step technique

Meeting Abstract

  • Enrico Bertelli - Zentralkrankenhaus Bozen, Augenabteilung, Bozen, Italien
  • Veronika Rogger - Zentralkrankenhaus Bozen, Augenabteilung, Bozen, Italien
  • Helga Pernter - Zentralkrankenhaus Bozen, Augenabteilung, Bozen, Italien
  • Verena Egger - Zentralkrankenhaus Bozen, Augenabteilung, Bozen, Italien

22. Internationaler Kongress der Deutschen Ophthalmochirurgen. Nürnberg, 18.-21.06.2009. Düsseldorf: German Medical Science GMS Publishing House; 2009. Doc09docVI 3.1

doi: 10.3205/09doc078, urn:nbn:de:0183-09doc0780

Published: July 9, 2009

© 2009 Bertelli 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.



Purpose: An original, modified, transconjunctival, 2-step 23G trocar insertion technique is presented in this article.

Methods: The technique does not require the use of Eckard pressure plate for displacement of the conjunctiva and stabilization of the globe. The technique prevents disalignment of conjunctival and scleral aperture and consequent, possible loss of the sclerotomy under the conjunctiva.

Results: The advantage of this bimanual, modified technique is that an instrument is constantly engaging the sclerotomy: the bent MVR blade serves as guide for the microcannula-inserter assembly. The microcannula-inserter introduction without Eckardt pressure plate also allows a precise measurement of the distance of the sclerotomy site from limbus, and a customized construction of the scleral tunnel.

Conclusions: This modified 2-steps technique simplifies the introduction of 23 G cannulas in complicated situations, such as chemotic and/or haemorrhagic conjunctivas and already vitrectomized eyes.