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ORIGINAL ARTICLE
Year : 2014  |  Volume : 62  |  Issue : 5  |  Page : 570-574

Ahmed Glaucoma Valve in Eyes with Preexisting Episcleral Encircling Element


1 Department of Glaucoma, Jadhavbhai Nathamal Singhvi, Sankara Nethralaya, Chennai; V S T Glaucoma Centre, Dr. Kallam Anji Reddy campus, L. V. Prasad Eye Institute, Hyderabad, India
2 Department of Glaucoma, Jadhavbhai Nathamal Singhvi, Sankara Nethralaya, Chennai, India
3 Department of Cornea, Dr. G. Sitalakshmi Memorial Clinic for Ocular Surface Disorders, Sankara Nethralaya, Chennai, India

Correspondence Address:
Lingam Vijaya
Department of Glaucoma, Jadhavbhai Nathamal Singhvi, Sankara Nethralaya, 18/41, College Road, Chennai - 600 006, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.129788

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Background: To describe the use of Ahmed glaucoma valve (AGV) in the management of intractable glaucoma in eyes with a preexisting episcleral encircling element. Materials and Methods: This is a retrospective, consecutive, noncomparative study. The study included 12 eyes of 12 patients with a preexisting episcleral encircling element that underwent implantation of silicone AGV to treat intractable glaucoma during January 2009 to September 2010. Results: The mean patient age was 25.6 (standard deviation 17.1) years. Five (41.6%) patients were monocular. The indications for AGV were varied. The mean duration between placement of episcleral encircling element and implantation of AGV was 30.5 (33.8) months. The mean follow-up was 37.4 (22.9) weeks. Preoperatively, the mean intraocular pressure (IOP) was 31.4 (7.9) mmHg and the mean antiglaucoma medications were 2.8. At the final postoperative follow-up, the mean IOP was 12.5 (3.5) mmHg and the mean number of antiglaucoma medications was 0.8 (P < 0.001). The complications observed over the follow-up period did include corneal graft failure in three eyes, tube erosion in two eyes and rhegmatogenous retinal detachment in one eye. Conclusion: AGV is an effective option in the management of intractable glaucoma in eyes with a preexisting episcleral encircling element keeping in mind the possibility of significant postoperative complications.


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