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Article Type

Original Study

Abstract

Objective This study aimed to find a practical accurate method to overcome the errors of intraocular lenses (IOLs) power calculation in patients undergoing cataract extraction and IOL implantation following previous laser-assisted in-situ keratomileusis (LASIK). Background Biometry for patients who had undergone LASIK. Patients and methods This study was carried out on 100 eyes to find a practical accurate method to overcome the errors of IOL power calculation in patients undergoing cataract extraction and IOL implantation following previous LASIK. Results Shammas no history method showed an average error (+0.46 ± 0.69 D), with 84% of cases within ± 0.5 D and 92% within ± 1 D. Rosa no history method showed an average error (0.7 ± 1.31 D), with 16% of cases within ± 0.5 D and 64% within ± 1 D. Ferrara no history method showed an average error (1.78 ± 1.15 D), with 20% of cases within ± 0.5 D and 32% within ± 1 D. Haigis-L no history method showed an average error (−0.48 ± 1.25 D), with 56% of cases within ± 0.5 D and 68% within ± 1 D. Conclusion Shammas method was the most accurate method, followed by the Haigis-L method, the Rosa method, with more dioptric errors, and finally the Ferrara method, with the largest dioptric error.

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