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  • Title: Laser in situ keratomileusis for undercorrection and overcorrection after radial keratotomy.
    Author: Attia WH, Alió JL, Artola A, Muñoz G, Shalaby AM.
    Journal: J Cataract Refract Surg; 2001 Feb; 27(2):267-72. PubMed ID: 11226794.
    Abstract:
    PURPOSE: To evaluate laser in situ keratomileusis (LASIK) in the management of overcorrection and undercorrection after radial keratotomy (RK). SETTING: Instituto Oftalmológico de Alicante, Alicante, Spain. METHODS: This prospective study comprised 20 eyes of 13 patients. The eyes were divided into 2 groups: 11 eyes that were overcorrected after RK and 9 eyes that were undercorrected after RK. Both groups were treated with LASIK after a mean interval of 22 months +/- 8.4 (SD) (range 12 to 45 months). The follow-up was 6 months. RESULTS: Six months after LASIK, there was a significant decrease in the spherical equivalent in both groups. Ninety-one percent of eyes in the overcorrected group and 89% in the undercorrected group were within +/-1.0 diopter of the intended correction. There was a significant improvement in the uncorrected visual acuity in both groups. In the overcorrected group, 91% showed no change or improvement in their best corrected visual acuity; in the undercorrected group, 89% showed no change or improvement. CONCLUSIONS: Laser in situ keratomileusis was relatively safe in treating both overcorrection and undercorrection after RK. With proper intraoperative precautions, LASIK can effectively treat the residual refractive defects after RK.
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