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1 General aspects (0)   1.1 Epidemiology (5)   1.2 Population genetics (19)   1.3 Pathogenesis (9)   1.4 Quality of life (2)   1.5 Glaucomas as cause of blindness (0)   1.6 Prevention and screening (5) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (0)   2.2 Cornea (6)   2.3 Sclera (0)   2.4 Anterior chamber angle (0)   2.5 Meshwork (6)     2.5.1 Trabecular meshwork (0)     2.5.2 Schlemms canal (0)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (2)     2.6.1 Production (0)     2.6.2 Outflow (0)       2.6.2.1 Trabecular meshwork (0)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (0)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (0)   2.9 Ciliary body (0)   2.10 Lens (0)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (0)   2.13 Retina and retinal nerve fibre layer (16)   2.14 Optic disc (18)   2.15 Optic nerve (0)   2.16 Chiasma and retrochiasmal central nervous system (0)   2.17 Stem cells (0)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (1)   3.2 Electron microscopy (0)   3.3 Immunohistochemistry (2)   3.4 Molecular genetics (1)     3.4.1 Linkage studies (0)     3.4.2 Gene studies (0)   3.5 Molecular biology incl. 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(0)     9.4.1 Steroid-induced glaucoma (2)     9.4.2 Glaucomas associated with disorders of the cornea, conjunctiva, sclera (1)       9.4.2.1 Iridocorneal endothelial syndrome (ICE, incl. irisatrophy) (0)       9.4.2.2 Posterior polymorphous dystrophy (0)       9.4.2.3 Fuchs' endothelial dystrophy (0)       9.4.2.5 Other (0)     9.4.3 Glaucomas associated with disorders of the iris and ciliary body (0)       9.4.3.1 Pigmentary glaucoma (0)       9.4.3.5 Other (0)     9.4.4 Glaucomas associated with disorders of the lens (0)       9.4.4.1 Exfoliation syndrome (4)       9.4.4.2 Glaucomas associated with cataracts (0)       9.4.4.3 Glaucomas associated with lens dislocation (2)       9.4.4.5 Other (0)     9.4.5 Glaucomas associated with disorders of the retina, choroid and vitreous (3)       9.4.5.1 Neovascular glaucoma (8)       9.4.5.5 Other (0)     9.4.6 Glaucomas associated with inflammation, uveitis (8)     9.4.7 Glaucomas associated with ocular trauma (1)     9.4.8 Glaucomas associated with intraocular tumors (1)     9.4.9 Glaucomas associated with elevated episcleral venous pressure (2)       9.4.10 Glaucomas associated with hemorrhage (0)     9.4.11 Glaucomas following intraocular surgery (0)       9.4.11.1 Ciliary block (malignant) glaucoma (0)       9.4.11.2 Glaucomas in aphakia and pseudophakia (1)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (3)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (0)     9.4.15 Glaucoma in relation to systemic disease (3)     9.4.20 Other (0) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (6) 11 Medical treatment (0)   11.1 General management, indication (7)   11.2 Cholinergic drugs (1)   11.3 Adrenergic drugs (0)     11.3.1 Epinephrine (0)     11.3.2 Thymoxamine, dapiprazole (0)     11.3.3 Apraclonidine, brimonidine (12)     11.3.4 Betablocker (16)     11.3.5 Other (0)   11.4 Prostaglandins (13)   11.5 Carbonic anhydrase inhibitors (0)     11.5.1 Systemic (0)     11.5.2 Topical (9)   11.6 Osmotic treatment (1)   11.7 Treatment of bloodflow (5)   11.8 Neuroprotection (7)   11.9 Gene therapy (1)   11.13 Combination therapy (0)     11.13.1 Betablocker and pilocarpine (0)     11.13.2 Betablocker and carbon anhydrase inhibitor (0)     11.13.3 Betablocker and brimonidine (0)     11.13.4 Betablocker and prostaglandin (0)     11.13.5 Other (0)   11.14 Investigational drugs; pharmacological experiments (10)   11.15 Other drugs in relation to glaucoma (2)   11.16 Vehicles, delivery systems, pharmacokinetics, formulation (2)   11.17 Cooperation with medical therapy e.g. persistency, compliance, adherence (0)   11.20 Other (0) 12 Surgical treatment (1)   12.1 General management, indication (1)   12.2 Laser iridotomy (5)   12.3 Laser iridoplasty (1)   12.4 Laser trabeculoplasty and other laser treatment of the angle (2)   12.7 Surgical iridectomy (0)   12.8 Filtering surgery (1)     12.8.1 Without tube implant (6)     12.8.2 With tube implant or other drainage devices (5)     12.8.3 Non-perforating (8)     12.8.4 Using laser (1)     12.8.5 Other (0)     12.8.10 Woundhealing antifibrosis (20)     12.8.11 Complications, endophthalmitis (13)   12.9 Trabeculotomy, goniotomy (3)   12.10 Cyclodestruction (7)   12.11 Cyclodialysis (0)   12.12 Cataract extraction (1)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (11)   12.14 Combined cataract extraction and glaucoma surgery (1)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (0)     12.14.3 Phacoemulsification (12)   12.15 Capsulotomy (1)   12.16 Vitrectomy (1)   12.17 Anesthesia (8)   12.20 Other (2) 13 Therapeutic prognosis and outcome (0)   13.1 Prognostic factors (0)   13.2 Outcome (0)     13.2.1 IOP (0)     13.2.2 Visual field (0)       13.2.2.1 Progression (0)       13.2.2.2 Improvement (0)     13.2.3 Other (0) 14 Costing studies; pharmacoeconomics (0) 15 Miscellaneous (7)

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Abstract #15996 Published in IGR 2-3

A clinical comparative study of interferon α-2b with mitomycin C applied in glaucoma filtering operations

Zhang X; Peng D; Zhou W
Chinese Journal of Ophthalmology 2000; 36: 119

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OBJECTIVE: To compare the results of interferon α-2b with mitomycin C (MMC) treatment in trabeculectomy. METHODS: Forty-one cases (68 eyes) with late-stage primary open-angle glaucoma (POAG) were randomly studied by treatment with IFN α-2b or MMC following trabeculectomy, each group consisting of 34 eyes. Of these cases, 27 were bilateral, one eye was given IFN α-2b, the other MMC. Ages of patients ranged from 15-40 years, and all patients were undergoing surgery for the first time. The surgical procedure was similar in all eyes. The IFN α-2b treated eyes were subconjunctivally injected 5 x 10⁵ IU at the filtering bleb immediately the operation was finished, and on postoperative days 3, 7, 10, and 14, respectively. The MMC eyes were intraoperatively administered with 0.25 mg/ml via a sponge under the conjunctival flap for five minutes. Follow-up ranged from six to 15 months. RESULTS: The 12th month life-table success rate of functional bleb formation was 70.95 ± 9.72% in the IFN α-2b treated group and 77.01 ± 10.51% in the MMC group. The difference was not statistically significant (μm = 0.2165, p > 0.05). The eyes with IFN α-2b tended to form type II blebs, according to Kronfeld's classification, whereas type I blebs were commonly seen in MMC-treated eyes (Χ² = 6.261, p < 0.05). The percentage of intraocular pressure between 10 and 15 mmHg at postoperative months 3, 6, 9, and 12, respectively, in the IFN α-2b group were higher than in the MMC group. The 12th month life-table complete and qualified success rates were 70.95 ± 9.72% and 94.59 ± 5.26% in the IFN α-2b group, and 65.15 ± 10.51% and 84.61 ± 7.26% in the MMC group, respectively (μm = 0.8174, 0.1011, p > 0.05). Complications induced by IFN α-2b were rare and mainly involved transient corneal epithelial defects, whereas those induced by MMC included thin-walled blebs, persistent hypotony and hypotomous maculopathy. A decrease in visual acuity was seen in 44.1% of the MMC group, but in only 17.6% in the IFN α-2B group (Χ = 5.2174, p < 0.05). CONCLUSIONS: IFN α-2b has a similar effect to MMC in reducing the risk of failure of glaucoma filtration surgery, but it has more advantages due to fewer complications.LA: Chinese

Dr. X. Zhang, Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou 510060, China. kindcrab@163.net

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Classification:

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

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