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1 General aspects (0)   1.1 Epidemiology (13)   1.2 Population genetics (0)   1.3 Pathogenesis (6)   1.4 Quality of life (7)   1.5 Glaucomas as cause of blindness (5)   1.6 Prevention and screening (6) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (6)   2.2 Cornea (17)   2.3 Sclera (14)   2.4 Anterior chamber angle (6)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (16)     2.5.2 Schlemms canal (4)     2.5.3 Scleral outlet channels (2)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (0)     2.6.2 Outflow (0)       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 (0)   2.8 Iris (6)   2.9 Ciliary body (1)   2.10 Lens (1)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (18)   2.13 Retina and retinal nerve fibre layer (33)   2.14 Optic disc (34)   2.15 Optic nerve (2)   2.16 Chiasma and retrochiasmal central nervous system (4)   2.17 Stem cells (5)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (5)   3.2 Electron microscopy (0)   3.3 Immunohistochemistry (4)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (2)     3.4.2 Gene studies (29)   3.5 Molecular biology incl. 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Miscellaneous (23)

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Abstract #69294 Published in IGR 18-1

Biocompatibility of a Novel Microfistula Implant in Nonprimate Mammals for the Surgical Treatment of Glaucoma

Shute TS; Dietrich UM; Baker JF; Carmichael KP; Wustenberg W; Ahmed II; Sheybani A
Investigative Ophthalmology and Visual Science 2016; 57: 3594-3600

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PURPOSE: The purpose of this study was to evaluate the ocular safety of a novel microfistula implant and its composite materials in an animal model. METHODS: The anterior chambers of 12 rabbit eyes were injected with either glutaraldehyde cross-linked porcine gelatin extract or balanced salt solution and were followed by serial slit lamp examinations over 3 days. The eyes of 18 canines underwent microfistula implantation or a sham procedure. The animals were monitored over the subsequent 12 months, using serial slit lamp examinations, indirect ophthalmoscopy, tonometry, specular microscopy, and high-resolution ultrasonography. Ocular tissues were examined histopathologically on postoperative days 7, 30, 90, 180, and 365. RESULTS: Glutaraldehyde cross-linked porcine gelatin did not induce significant intraocular inflammation in the rabbit model. The microfistula implant was well tolerated and did not stimulate significant tissue response in the canine eye. The microfistula tube did not undergo structural change or degradation over the course of the study. CONCLUSIONS: In nonprimate mammals, the material composing the microfistula implant and the implant itself do not induce significant inflammation or tissue reaction.

Department of Ophthalmology and Visual Sciences Washington University in St. Louis School of Medicine, St. Louis, Missouri, United States.

Full article

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Classification:

12.8.2 With tube implant or other drainage devices (Part of: 12 Surgical treatment > 12.8 Filtering surgery)
5.3 Other (Part of: 5 Experimental glaucoma; animal models)

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