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1 General aspects (0)   1.1 Epidemiology (11)   1.2 Population genetics (0)   1.3 Pathogenesis (4)   1.4 Quality of life (12)   1.5 Glaucomas as cause of blindness (5)   1.6 Prevention and screening (9) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (4)   2.2 Cornea (18)   2.3 Sclera (4)   2.4 Anterior chamber angle (4)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (7)     2.5.2 Schlemms canal (1)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (1)     2.6.1 Production (0)     2.6.2 Outflow (2)       2.6.2.1 Trabecular meshwork (1)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (1)   2.7 Episcleral veins and venous pressure (1)   2.8 Iris (2)   2.9 Ciliary body (1)   2.10 Lens (0)   2.11 Vitreous body (1)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (1)   2.13 Retina and retinal nerve fibre layer (16)   2.14 Optic disc (8)   2.15 Optic nerve (1)   2.16 Chiasma and retrochiasmal central nervous system (9)   2.17 Stem cells (1)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (2)   3.2 Electron microscopy (4)   3.3 Immunohistochemistry (5)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (0)     3.4.2 Gene studies (33)   3.5 Molecular biology incl. 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Miscellaneous (8)

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Abstract #25581 Published in IGR 12-1

Ahmed glaucoma valve implantation combined with retinal photocoagulation or cryocoagulation for the treatment of neovascular glaucoma

Tang G -X; Tian A -J; Wang X -B; Lu W -S; Zhou Y -Z; Lu J -H
International Journal of Ophthalmology 2009; 9: 2105-2107

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AIM: To investigate the therapeutic effect of Ahmed glaucoma valve implantation combined with retinal photocoagulation or cryocoagulation for the treatment of neovascular glaucoma. METHODS: Fifty-six cases (58 eyes) with neovascular glaucoma were involved in this study. In them, 25 cases (25 eyes) sufferred from central retinal vein occlusion (CRVO); 21 cases (23 eyes) with diabetic retinopathy; 5 cases (5 eyes) with retinal vasculitis; 4 cases (4 eyes) with carotid artery stenosis; one eye with branch retinal vein occlusion. All cases underwent Ahmed glaucoma valve implantation combined with retinal photocoagulation or cryocoagulation; 47 eyes underwent panretinal photocoagulation before and after surgery; 11 eyes underwent peripheral retinal cryocoagulation during surgery. The mean follow-up time was 18.0 (plus or minus) 6.2 months. The changes of visual acuity and IOP and complications were observed before and after operation. The results were statistically analyzed. RESULTS: Visual acuity: The visual acuity of 43 eyes were improved at different degrees after surgery, and 15 eyes had no change. The visual acuities were not worsened in any eyes. IOP: The mean IOP decreased from 49.56 (plus or minus) 8.25mmHg to 17.86 (plus or minus) 5.25mmHg 6 months after surgery, and the success rate was 85%; the mean IOP decreased from 50.25 (plus or minus) 7.18mmHg to 18.80 (plus or minus) 6.81 mmHg 12 months after surgery, and the success rate was 78%; There were 19 eyes which were followed up over 24 months. The mean IOP decreased from 51.05 (plus or minus) 8. 10mmHg to 20.12 (plus or minus) 7.01mmHg, and the success rate was 74%. There were significant differences in IOP reduction before and after surgery. Its complications included hemorrhage in anterior chamber, delaying the formation of anterior chamber, drainage tube endostoma occlusion, drainage plate coated by fiber. All recovered after treatment. CONCLUSION: Ahmed glaucoma valve implantation combined with retinal photocoagulation or cryocoagulation seems to be a safe and effective method for the treatment of neovascular glaucoma. LA: Chinese

G.-X. Tang. Xingtai Ophthalmic Hospital, Xingtai 054001, Hebei Province, China. guangxiantang@yahoo.com.cn

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Classification:

12.8.2 With tube implant or other drainage devices (Part of: 12 Surgical treatment > 12.8 Filtering surgery)
9.4.5.1 Neovascular glaucoma (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.5 Glaucomas associated with disorders of the retina, choroid and vitreous)
9.4.11.5 Glaucomas associated with vitreoretinal surgery (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.11 Glaucomas following intraocular surgery)

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