Otago Glaucoma Surgery Outcome Study: long‐term results of 841 trabeculectomies

Bevin, Tui H; Molteno, A. C. B.; Herbison, Peter

doi:10.1111/j.1442-9071.2008.01896.x

Cited by 50 publications

(42 citation statements)

References 30 publications

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“…An accepted method of maintaining aqueous drainage has been conventional trabeculectomy where, after raising a conjunctival flap, an artificial channel is made between the anterior chamber and the subconjunctival space by means of a scleral flap [1]. Reduction of intraocular pressure (IOP) has been known to be sustained by this channel over a period [6–9]. In this paper, we have presented a modified technique of trabeculectomy for primary open angle glaucoma (POAG) where a scleral tunnel has been used with decreased conjunctival dissection.…”

Section: Introductionmentioning

confidence: 99%

Stab Incision Glaucoma Surgery: A Modified Guarded Filtration Procedure for Primary Open Angle Glaucoma

Jacob

Figus

Kumar

et al. 2016

Journal of Ophthalmology

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Purpose. To describe a modified guarded filtration surgery, stab incision glaucoma surgery (SIGS), for primary open angle glaucoma (POAG). Methods. This prospective, interventional case series included patients with POAG (IOP ≥21 mmHg with glaucomatous visual field defects). After sliding superior conjunctiva down over limbus, 2.8 mm bevel-up keratome was used to create conjunctival entry and superficial corneoscleral tunnel in a single step starting 1.5 mm behind limbus. Lamellar corneoscleral tunnel was carefully dissected 0.5–1 mm into cornea and anterior chamber (AC) was entered. Kelly Descemet's punch (1 mm) was slid along the tunnel into AC to punch internal lip of the tunnel, thereby compromising it. Patency of ostium was assessed by injecting fluid in AC and visualizing leakage from tunnel. Conjunctival incision alone was sutured. Results. Mean preoperative IOP was 27.41 ± 5.54 mmHg and mean postoperative IOP was 16.47 ± 4.81 mmHg (n = 17). Mean reduction in IOP was 38.81 ± 16.55%. There was significant reduction of IOP (p < 0.000). 64.7% had IOP at final follow-up of <18 mmHg without medication and 82.35% had IOP <18 mmHg with ≤2 medications. No sight threatening complications were encountered. Conclusion. Satisfactory IOP control was noted after SIGS in interim follow-up (14.18 ± 1.88 months).

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Section: Introductionmentioning

confidence: 99%

Stab Incision Glaucoma Surgery: A Modified Guarded Filtration Procedure for Primary Open Angle Glaucoma

Jacob

Figus

Kumar

et al. 2016

Journal of Ophthalmology

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“…39 The reported reoperation rate following initial trabeculectomy was 4.8% at 6.7 years and 8% at 7.5 years. 40,41 In China, the success rate of primary trabeculectomy in PACG has been reported as 90% to 95% over a period of 2 years. 42,43 A large retrospective study in Korea examined 900 patients (870 POAG eyes and 132 PACG eyes) to determine the 15-year success rate.…”

Section: Lpi Versus Trabeculectomy As An Initial Treatment For Pacgmentioning

confidence: 99%

“…Hyphema (27%), 40,59 hypotony (24.3%), 59 shallow anterior chamber (23.9% 59 to 40% 46 ), and choroidal detachment (12% 40 to 14% 59 ) are some of the early complications. Long-term complications include cataract (20% 54 to 50% 55,56 ), scarring of filtering bleb (3.4% to 16% 40,41,59 ), and bleb-related infection (1.3% to 2.0%). 60,61 In addition, the surgery impairs visual acuity during the early phase in about 20% of the patients.…”

Section: Complications Of Initial Lpi and Trabeculectomymentioning

confidence: 99%

Initial Treatment for Primary Angle-Closure Glaucoma in China

Liang

Wang

Rong

et al. 2015

Journal of Glaucoma

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China has a large burden of primary angle-closure glaucoma (PACG) and the approach to treatment is different from that in most parts of the world. In China, trabeculectomy is a mainstay of initial treatment for PACG and laser peripheral iridotomy is reserved for PAC and PACG with peripheral angle synechiae ≤180 degrees. The greater reduction of and more stable IOP, lower frequency of acute angle closure, decreased progression of peripheral anterior synechia and glaucoma, and the reduction of ocular complications associated with long-term use of glaucoma medications support the use of initial trabeculectomy in PACG without significant lens opacities. Further study is required to determine the indications and effectiveness of initial trabeculectomy for PACG in a developing country setting.

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“…Orbit content has importance for IOP value: in Graves disease muscle thickness can increase to compress the bulb, giving rise to a constant increase of pressure. 20 In NTG patients, the favorable effect of IOP reduction on visual change progression was only found when the impact of cataracts on visual field progression was removed. However, results are sometimes controversial.…”

Section: Intraocular Pressure As a Risk Factormentioning

confidence: 99%