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Journal of Glaucoma:
Original Article

Donor Scleral Patch for Treating Hypotony Due to Leaking and/or Overfiltering Blebs

Harizman, Noga MD*; Ben-Cnaan, Ran MD*; Goldenfeld, Modi MD; Levkovitch-Verbin, Hana MD; Melamed, Shlomo MD

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Abstract

Objective: To report a modified technique of bleb revision with the use of a donor scleral patch in cases in which scleral melting did not allow effective suturing and closure of the aqueous leak. The suturing technique ensures tight adaptation of the scleral patch over the leaky region, and allows better-controlled aqueous flow with loose suturing of the posterior edge of the scleral patch.

Methods: Records of patients who underwent bleb revision with donor scleral graft from 1997 to 2003 were reviewed retrospectively. Chart information including demographic and clinical data was recorded preoperatively and 1 day, 1 week, 1 month, 6 months, and at final follow-up.

Results: Fifteen patients underwent this surgical procedure for bleb revision. The mean follow-up time was 22.0 ± 24.0 months (median = 8.0 months). The mean preoperative visual acuity was 20/50 and the mean intraocular pressure (IOP) was 2.9 ± 2.3 mm Hg, which improved to 20/30 and 14.1 ± 3.3 mm Hg respectively, on last follow-up.

Conclusions: The scleral patch with 4-nylon sutures should be proposed in cases in which a macerated scleral bed is revealed during the revision. The loose suturing of the scleral patch at its posterior border was found to prevent intraocular pressure spikes.

© 2005 Lippincott Williams & Wilkins, Inc.

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