Nonpenetrating deep sclerectomy versus trabeculectomy in bilateral primary open- angle glaucoma1Icce to phaco
Section snippets
Patients and methods
A total of 39 patients (78 eyes) with bilateral primary open-angle glaucoma underwent bilateral filtering surgery between October 1997 and March 1998.
Patients were assigned randomly to receive deep sclerectomy in one eye and trabeculectomy in the other; the surgeries were scheduled with no more than 3 days between the two procedures. Patients were included in the study if they had uncontrolled glaucoma (intraocular pressure [IOP] >21 mmHg) despite maximally tolerated medications. Excluded were
Results
Seventy-eight eyes of 39 patients were enrolled in the study. The mean ± standard deviation reported age of the patients was 53.4 ± 9.6 years (range, 38–75 years). Most patients were men (62.5%). Two patients were excluded from the study and were replaced because accidental perforation of the trabecula-Descemet’s membrane occurred during deep sclerectomy.
Preoperative and postoperative IOPs are shown in Table 1. There was a significant IOP reduction after surgery in both groups throughout the
Discussion
Nonpenetrating sclerectomy allows aqueous filtration from the anterior chamber to the subconjunctival space through a thin trabecula-Descemet’s membrane.15 This membrane avoids the sudden IOP drop, thus lowering the incidence of postoperative complications encountered with trabeculectomy.
Nonpenetrating filtration surgery was first proposed by Zimmerman et al.8, 9 Different techniques were described by others16, 17 with encouraging results. Fyodororv et al10 and Kozlov et al18 reported the use
References (21)
- et al.
Ciliochoroidal detachment
Surv Ophthalmol
(1983) - et al.
Management of anterior chamber depth after trabeculectomy
Am J Ophthalmol
(1988) - et al.
Comparison of deep sclerectomy with collagen implant and trabeculectomy in open angle glaucoma
J Cataract Refract Surg
(1999) Trabeculectomy vs full-thickness filtering operation for control of glaucoma
Ophthalmic Surg
(1980)- et al.
Trabeculectomy vs thermosclerostomy
A randomized prospective clinical trial. Arch Ophthalmol
(1981) - et al.
Delayed nonexpulsive suprachoroidal hemorrhage
Arch Ophthalmol
(1984) - et al.
Postoperative suprachoroidal hemorrhage following filtration procedures
Arch Ophthalmol
(1986) - et al.
Anterior chamber depth following filtration surgery
Ophthalmic Surg
(1989) - et al.
Effectiveness of nonpenetrating trabeculectomy in aphakic patients with glaucoma
Ophthalmic Surg
(1984) - et al.
Trabeculectomy vs. nonpenetrating trabeculectomya retrospective study of two procedures in phakic patients with glaucoma
Ophthalmic Surg
(1984)
Cited by (0)
- 1
The authors have no proprietary or financial interest in any product of this study.