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Cataract surgery in eyes with coloboma can present intraoperative challenges and pose greater risk of complications because of the associated ocular malformations.1 2 There may be associated scleral weakness in the fetal cleft region, zonular deficiency, poor pupillary dilatation and accompanied microphthalmos. In addition, these eyes are to be handled with great caution due to the increased risk of retinal detachment, association of maculopathy and poor surgical results. There are very few reports on the outcomes of cataract surgery in eyes with congenital coloboma owing to its relatively infrequent occurrence. The aim of this study is to describe our experience of cataract surgery in 26 eyes of 25 patients with congenital iridolenticular choroidal coloboma.
From January 2009 to December 2010, 25 patients (26 eyes) with congenital iridolenticular choroidal coloboma underwent cataract surgery through the anterior segment route. The charts were reviewed for demographics, extent of coloboma, type and density of cataract, surgical approach, intraoperative surgical details and postoperative outcomes.
Biometry was performed using the Ocuscan RxP ophthalmic ultrasound system (Alcon laboratories, Forth Worth, Texas, USA) and a manual keratometer (Bausch and Lomb Keratometer). Axial length measurement was done by locating the patient's preferred fixation point and taking an average of the 10 most accurate axial length readings. …