Abstract
Purpose: To evaluate the efficacy of long scleral tunnel technique used in Ahmed glaucoma valve (AGV) implantation in preventing tube exposure through conjunctiva. Materials and Methods: Patients of adult age, who were unresponsive to maximum medical treatment and underwent AGV implantation, were divided into two groups and investigated retrospectively. Group 1 consisted of 40 eyes of 38 patients that underwent surgery by long scleral tunnel technique and Group 2 consisted of 38 eyes of 35 patients that underwent implantation by processed pericardium patch graft method. Results: The mean age was 54.8 ± 14.6 years (range 26–68 years) and the mean follow-up duration was 46.7 ± 19.4 months (range 18–76 months) for the patients in Group 1, whereas the mean age was 58.6 ± 16.7 years (range 32–74 years) and mean follow-up period was 43.6 ± 15.7 months (range 20–72 months) for the patients in Group 2 (p > 0.05). In the course of follow-up, tube exposure was detected in one (2.5%) eye in Group 1 and in three (7.9%) eyes in Group 2 (p = 0.042). Conclusion: Long scleral tunnel technique is beneficial in preventing conjunctival tube exposure in AGV implantation surgery.
Published Version
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