A Comparison Of Lasik Outcomes For High Versus Low Myopia: Large Data Analysis
Published 2025 - 43rd Congress of the ESCRS
Reference: PO702 | Type: Free paper | DOI: 10.82333/74br-e765
Authors: Dror Ben Ephraim Noyman 1 , Margarita Safir 2 , Adir Sommer 1 , Waseem Nasser 1 , Tzahi Sela 3 , Gur Munzer 3 , Igor Kaiserman 4 , Michael Mimouni* 5
1Ophthalmology,Rambam Health Care Campus,Haifa,Israel;Ruth and Bruce Rappaport Faculty of Medicine,Technion - Israel Institute of Technology,Haifa,Israel, 2Rabin Medical Center,Petah Tikva,Israel;Tel Aviv University,Sackler School of Medicine,Tel Aviv,Israel, 3Care-Vision Laser Center,Tel Aviv,Israel, 4Care-Vision Laser Center,Tel Aviv,Israel;Ophthalmology,Barzilai Medical Center,Ashkelon,Israel;Faculty of Health Sciences,Ben-Gurion University of the Negev,Beer Sheba,Israel, 5Ophthalmology,Rambam Health Care Campus,Haifa,Israel;Ruth and Bruce Rappaport Faculty of Medicine,Technion - Israel Institute of Technology,Haifa,Israel;Care-Vision Laser Center,Tel Aviv,Israel
Purpose
To compare the visual and refractive outcomes of low versus high myopic correction using laser in situ keratomileusis (LASIK) surgery.
Setting
Care-Vision Laser Centers, Tel-Aviv, Israel.
Methods
In this retrospective study, patients who underwent myopic LASIK between January 2013 and December 2023 were included. Eyes were divided into two groups based on preoperative myopia severity: low (0.5 to 3.0 diopters) and high (≥6.0 diopters). Adjustments were made to account for differences in baseline and intraoperative parameters.
Results
A total of 12,074 eyes from 6,985 patients were included. Mean SEQ was -6.8D for high myopia and -2.0D for low myopia. High myopia (6.7%, n=813) had steeper corneas (Kmax 44.49 vs. 44.21D, P<0.001), worse preoperative UCVA (LogMAR 2 vs. 0.77, P<0.001) and BCVA (0.03 vs. 0.02, P<0.001). Post-LASIK, high myopia showed worse UCVA (0.04 vs. 0.02, P<0.001) and BCVA (0.03 vs. 0.01, P<0.001), higher cylinder (-0.08 vs. -0.05D, P<0.001) and SEQ (-0.12 vs. -0.07D, P=0.015), and flatter keratometry (38.43 vs. 41.83D, P<0.001). These differences remained significant after adjustments accounting for differences in baseline and intraoperative parameters, with no increased retreatment rates (P=0.27).
Conclusions
While LASIK surgery yielded satisfactory outcomes for both low and high myopia, those with high myopia experienced slightly less favorable results in both UCVA and BCVA. Despite the less favorable outcomes, high myopia was not associated with higher retreatment rates.