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Title: Pattern of blood vessels in eyes with coloboma
Authors: Lingam, G. 
Keywords: Coloboma of the choroid
coloboma optic disc
indo cyanine green angiography
vascular pattern
Issue Date: 1-Dec-2013
Citation: Lingam, G. (2013-12-01). Pattern of blood vessels in eyes with coloboma. Indian Journal of Ophthalmology 61 (12) : 743-748. ScholarBank@NUS Repository.
Abstract: Background: Choroidal coloboma, especially with optic disc involvement affects the blood vessel (BV) pattern in the fundus. Aim: The aim of this study was to report the observations on the pattern of retinal BVs in eyes with fundus coloboma. Design: Retrospective observational study. Materials and Methods: Twenty four eyes of 19 patients with fundus coloboma and the disc involvement in the coloboma was classified according to a previous publication. Results: Four varieties of BVs were identified in the area of coloboma - BVs that were continuous with those arising from the optic disc; vessels emanating from the floor of coloboma whose continuity with central retinal artery or its branches could be indirectly established; and those emanating from the floor of coloboma whose continuity with central retinal artery could not be established. In addition, extraocular BVs were visible through the thinned sclera. The retinal BVs often traversed the coloboma to reach the normal retina. The disc itself was found to be small and had no physiological cup (if not colobomatous). Conclusions: One should be aware of the major BVs transgressing the coloboma while performing relaxing cuts in the intercalary membrane, during the surgery for retinal detachments in eyes with coloboma. Physiological cup is usually absent (when the disc is not colobomatous). Hence, any cupping in such eyes should be viewed with suspicion.
Source Title: Indian Journal of Ophthalmology
ISSN: 03014738
DOI: 10.4103/0301-4738.122910
Appears in Collections:Staff Publications

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