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1 General aspects (0)   1.1 Epidemiology (6)   1.2 Population genetics (1)   1.3 Pathogenesis (0)   1.4 Quality of life (1)   1.5 Glaucomas as cause of blindness (4)   1.6 Prevention and screening (2) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (1)   2.2 Cornea (2)   2.3 Sclera (0)   2.4 Anterior chamber angle (2)   2.5 Meshwork (1)     2.5.1 Trabecular meshwork (16)     2.5.2 Schlemms canal (0)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (2)     2.6.2 Outflow (2)       2.6.2.1 Trabecular meshwork (2)       2.6.2.2 Uveoscleral (1)     2.6.3 Compostion (0)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (0)   2.9 Ciliary body (1)   2.10 Lens (0)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (1)   2.13 Retina and retinal nerve fibre layer (8)   2.14 Optic disc (11)   2.15 Optic nerve (1)   2.16 Chiasma and retrochiasmal central nervous system (0)   2.17 Stem cells (0)   2.20 Other (1) 3 Laboratory methods (0)   3.1 Microscopy (0)   3.2 Electron microscopy (0)   3.3 Immunohistochemistry (11)   3.4 Molecular genetics (3)     3.4.1 Linkage studies (6)     3.4.2 Gene studies (7)   3.5 Molecular biology incl. 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Abstract #9993 Published in IGR 5-3

Trabeculectomy with beta radiation: long-term follow-up

Lai JS; Poon AS; Tham CC; Lam DS
Ophthalmology 2003; 110: 1822-1826

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PURPOSE: To evaluate the long-term outcome and complications of trabeculectomy with beta radiation. DESIGN: Retrospective noncomparative case series. PARTICIPANTS: Forty-three patients with confirmed primary open-angle glaucoma (POAG), who received trabeculectomy with adjunctive beta radiation at the Prince of Wales Hospital between June 1991 and November 1994. METHODS: Patients fulfilling the preceding criteria were followed up longitudinally. The visual acuity, intraocular pressure (IOP), bleb morphology, and complications were evaluated. MAIN OUTCOME MEASURES: Visual acuity, IOP, bleb morphology, complications. RESULTS: Forty-three eyes of 43 consecutive Chinese patients were recruited and successfully followed up for a minimum of seven years. The mean age ± 1 SD was 60.9 ± 13.0 years. There were 29 males and 14 females. The mean baseline IOP ± 1 SD was 28.3 ± 5.8 mmHg. The mean postoperative IOP ± 1 SD after the initial trabeculectomy was 11.9 ± 4.3 mmHg, and the mean number of preoperative IOP-lowering eye drops ± 1 SD was reduced from 2.8 ± 0.5 to 0.7 ± 1.0 at seven years' follow-up. The qualified success rate at seven years' follow-up, defined as IOP ≤ 21 mmHg with and without medication(s), was 88.4%. The complete success rate at seven years defined as IOP ≤ 21 mmHg without medication was 60.7%. Two eyes developed blebitis, and one of them progressed to corneal decompensation after the infection. One eye had hypotony, and one eye had a traumatic ruptured bleb. Twelve eyes (27.9%) developed significant cataract. No corneal ulceration or scleral necrosis was encountered. CONCLUSIONS: From this noncomparative study, trabeculectomy with a single dose of 1000 rad beta radiation used as an adjunctive measure for POAG in Chinese eyes had achieved a qualified success rate of 88.4% at seven years.

Dr. J.S. Lai, Department of Ophthalmology, United Christian Hospital, Kowloon, Hong Kong, China

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Classification:

12.8.10 Woundhealing antifibrosis (Part of: 12 Surgical treatment > 12.8 Filtering surgery)

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