PURPOSE: We compared the 3-year outcomes with regard to efficacy, stability, and safety of LASIK and surface ablation performed at multiple centers in Korea. METHODS: The charts of 5109 eyes that underwent LASIK or surface ablation, including LASEK, epi-LASIK, and photorefractive keratectomy (PRK), at multiple centers between 2002 and 2005 were reviewed. Of these, 577 LASIK-treated eyes and 577 propensity score-matched surface-ablated eyes were included in this cohort study. A standardized case report form (CRF) was completed based on a review of the 3-year follow-up chart. The CRF included the preoperative, surgical, and postoperative data for the refractive error, uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), IOP, corneal thickness, keratometry, corneal topography, Schirmer test, and tear breakup time (TBUT). RESULTS: The efficacy index calculated after 3 years and the postoperative spherical equivalents measured at 3 months or 3 years did not differ between the LASIK and surface ablation groups. Although myopic regression was observed in the surface ablation group through postoperative years 1 and 2, this difference did not affect the visual acuity significantly. Surface ablation did carry a higher cumulative incidence of corneal haze. CONCLUSIONS: LASIK and surface ablation produced similar postoperative visual efficacy after corneal healing. The outcome predictability did not differ between the 2 groups, but myopic regression was observed more frequently in the surface ablation group. Corneal haze after surface ablation is much more common than reported previously.
PURPOSE: We compared the 3-year outcomes with regard to efficacy, stability, and safety of LASIK and surface ablation performed at multiple centers in Korea. METHODS: The charts of 5109 eyes that underwent LASIK or surface ablation, including LASEK, epi-LASIK, and photorefractive keratectomy (PRK), at multiple centers between 2002 and 2005 were reviewed. Of these, 577 LASIK-treated eyes and 577 propensity score-matched surface-ablated eyes were included in this cohort study. A standardized case report form (CRF) was completed based on a review of the 3-year follow-up chart. The CRF included the preoperative, surgical, and postoperative data for the refractive error, uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), IOP, corneal thickness, keratometry, corneal topography, Schirmer test, and tear breakup time (TBUT). RESULTS: The efficacy index calculated after 3 years and the postoperative spherical equivalents measured at 3 months or 3 years did not differ between the LASIK and surface ablation groups. Although myopic regression was observed in the surface ablation group through postoperative years 1 and 2, this difference did not affect the visual acuity significantly. Surface ablation did carry a higher cumulative incidence of corneal haze. CONCLUSIONS: LASIK and surface ablation produced similar postoperative visual efficacy after corneal healing. The outcome predictability did not differ between the 2 groups, but myopic regression was observed more frequently in the surface ablation group. Corneal haze after surface ablation is much more common than reported previously.
Authors: Mohammad M Shehadeh; Mohammad T Akkawi; Ammar A Aghbar; Muna T Musmar; Malak N Khabbas; Marah F Kharouf; Liana Al-Labadi Journal: Open Ophthalmol J Date: 2018-09-26
Authors: Jean Baptiste Giral; Florian Bloch; Maxime Sot; Yinka Zevering; Arpine El Nar; Jean Charles Vermion; Christophe Goetz; Louis Lhuillier; Jean-Marc Perone Journal: PLoS One Date: 2021-12-07 Impact factor: 3.240