الفهرس 
Review of Literature
Aim of astigmatism correctionOnly 14 pages are availabe for public view
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Abstract
Aim : To evaluate the efficacy and safety of the opposite clear corneal incisions in correcting preoperative regular astigmatism in conjunction with phacoemulsification. Sitting: Mansoura ophthalmology centre. Methods: 40 eyes of 40 patients with a mean age of 41.5 years±16.5 (SD) (range 14 to 65 years) were recruited for this study. Inclusion criteria included topographic astigmatism ranging between 1.5 and 4.0 D in the cataractous eye and clear cornea. Preoperative refraction, keratometry and topography were performed before surgery. Intraoperative, the steep axis was marked using an astigmatic marker. Paired self sealing opposite clear corneal incisions were made at the edge of the vascular archade on the steep axis using 3.2 mm metal keratome. One incision was used for phacoemulsification, and the other was left unused for astigmatic correction. First follow up was at one week and then monthly for 6 months. Postoperative topography and keratometry were done for all patients. Results: Mean preoperative astigmatism was 2.0 D±0.64 ( range 1.45 to 3.75 D). Mean postoperative astigmatism was 0.76 D±0.18 ( range 0.05 to 5.08).Mean corrected astigmatism after 6 months was 1.27D±0.61 (range 0.2 to 2.90 D). Mean SIA using the low of cosines was 1.79 D± 1.03 (range 0.49 to 5.12 D). There were no incision related complications. Conclusion: The opposite clear corneal incisions on the steep axis provide a new safe and effective technique for reduction of preoperative regular astigmatism simultaneously with phacoemulsification.