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  • Title: Laser in situ keratomileusis versus lens-based surgery for correcting residual refractive error after cataract surgery.
    Author: Jin GJ, Merkley KH, Crandall AS, Jones YJ.
    Journal: J Cataract Refract Surg; 2008 Apr; 34(4):562-9. PubMed ID: 18361976.
    Abstract:
    PURPOSE: To evaluate and compare the efficacy and safety of laser in situ keratomileusis (LASIK) versus lens-based surgery (intraocular lens [IOL] exchange or piggyback IOL) for correcting residual refractive error after cataract surgery. SETTING: Private eye center, Salt Lake City, Utah, USA. METHODS: This retrospective study included 57 eyes of 48 patients who had LASIK (28 eyes) or lens-based correction (29 eyes) for residual refractive error after cataract surgery. The visual and refractive outcomes were evaluated at a mean follow-up of 20 to 24 months. RESULTS: In the LASIK group, the mean spherical equivalent (SE) was reduced from -1.62 +/- 0.80 diopters (D) preoperatively to +0.05 +/- 0.38 D postoperatively in myopic eyes and from +0.51 +/- 1.25 D to +0.19 +/- 0.35 D in hyperopic eyes. Ninety-two percent of eyes were within +/-0.50 D of intended correction. In the lens group, the mean SE was reduced from -3.55 +/- 2.69 D preoperatively to -0.20 +/- 0.50 D postoperatively in myopic eyes and from +2.07 +/- 2.38 D to +0.07 +/- 0.85 D in hyperopic eyes. Eighty-one percent of eyes had postoperative SE within +/-0.50 D of the intended correction. The UCVA improved significantly in both groups. No eye lost more than 1 line of BSCVA. With a similar length of follow-up, no significant difference in postoperative SE was found between the 2 groups (P = .453). CONCLUSIONS: The results showed efficacy, safety, predictability, and merits of LASIK and lens-based approaches for correcting different types of residual refractive error after cataract surgery.
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