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International Ophthalmology

, Volume 38, Issue 6, pp 2349–2356 | Cite as

“Double scleral tunnel in tandem” technique for glaucoma drainage tube implants

  • Dimitrios BrouzasEmail author
  • Maria Dettoraki
  • Konstantinos Andreanos
  • Nikolaos Nomikarios
  • Chryssanthi Koutsandrea
  • Marilita M. Moschos
Original Paper

Abstract

Purpose

To describe a new technique of Ahmed glaucoma valve implantation in patients with refractory glaucoma and present the long-term results.

Methods

Twenty-eight eyes of 28 patients with refractory glaucoma participated in the study. “Double scleral tunnel in tandem” technique was used for glaucoma valve implantation in all patients. The technique consists of the formation of two scleral tunnels in tandem so as to completely cover the extraocular part of valve’s tube and facilitate a parallel to the iris placement of the intraocular part of the tube.

Results

Postoperative hypotony developed in two (7.1%) cases which resolved within 3 days in all cases. One (3.6%) eye manifested postoperative hyphema that resolved without complications within a week, and two (7.1%) cases presented with exposure of the tube. The average highest postoperative intraocular pressure (IOP) during the follow-up period was 19 mmHg (range 8–38 mmHg) without medications, and the average IOP at the last follow-up visit was 14.5 mmHg (range 8–22 mmHg). Additional treatment for IOP control was necessary in 11 (39.3%) cases. The average follow-up period was 60 months.

Conclusion

This novel technique was found to be easy to master, effective and with low cost and rate of complications.

Keywords

Glaucoma valve Tube exposure Glaucoma valve implantation technique Double scleral tunnel in tandem 

Notes

Compliance with ethical standards

Conflicts of interest

The authors declare that they have no conflict of interest.

Ethical approval

The study protocol followed the principles in the Declaration of Helsinki.

Informed consent

Informed consent was obtained from all patients.

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Copyright information

© Springer Science+Business Media B.V. 2017

Authors and Affiliations

  • Dimitrios Brouzas
    • 1
    Email author
  • Maria Dettoraki
    • 1
  • Konstantinos Andreanos
    • 1
  • Nikolaos Nomikarios
    • 1
  • Chryssanthi Koutsandrea
    • 1
  • Marilita M. Moschos
    • 1
  1. 1.First Department of OphthalmologyNational and Kapodistrian University of AthensAthensGreece

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