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Scleral Tunnel versus
Partial Thickness Scleral Flap for the Protection of the Tube of
Ahmed Glaucoma Valve Implant
Tarek Ragaiey
Department of Ophthalmology, Faculty of Medicine, Tanta University,
Egypt
Tanta Med. Sc. J 2008; 3(3):101-108
Article type: Original article
Aim: To compare between efficacy and safety of
scleral tunnel versus partial thickness scleral flap for the
protection of the tube of Ahmed glaucoma valve implant. Patients &
Methods: Twenty eyes of twenty patients with refractory glaucoma
operated with Ahmed glaucoma valve were included in the study.
Partial thickness scleral flap was used to cover the tube of the
valve in 11 eyes (group 1) while scleral tunnel was used to cover
the tube in 9 eyes (group 2). Results: The mean postoperative follow
up period was 12 month. Postoperative data included pre & post
operative IOP, comparison between the incidences of tube exposure,
corneal touch in the two techniques together with postoperative
complications. Conclusion: Scleral tunnel technique was found to be
more save as regard the incidence of tube exposure& corneal touch.
There was no statistical difference between postoperative IOP of
both techniques.
ICID 871715
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