ESCRS - FPM07.01 - Lasik Vs. Smile For Myopia And Myopic Astigmatism: 4 Year Data Of A Randomized, Prospective, Contralateral Eye Study

Lasik Vs. Smile For Myopia And Myopic Astigmatism: 4 Year Data Of A Randomized, Prospective, Contralateral Eye Study

Published 2022 - 40th Congress of the ESCRS

Reference: FPM07.01 | Type: Free paper | DOI: 10.82333/tj92-2f49

Authors: Anastasios John Kanellopoulos 1 , Gregory Pamel 2 , Dimtrios Machairas* 3

1Ophthalmology,LaserVision Ambulatory Eye Surgery Unit,Athens,Greece;Ophthalmology,NYU Med School,New York,United States;ophthalmology,NYU Med School,New York,United States, 2ophthalmology,NYU Med School,New York,United States, 3Ophthalmology, LaserVision Ambulatory Eye Surgery Unit,Athens,Greece

Purpose

Both LASIK and Smile are safe and effective in myopic refractive corrections; This study compares the long-term safety and efficacy of topography-guided LASIK vs. contralateral eye SMILE for myopia and myopic astigmatism correction. In this study we compare the long-term safety and efficacy of topography-guided LASIK  vs. contralateral eye SMILE for myopia and myopic astigmatism correction.

Setting

The Laservision Clinical and Research Institute, Athens, Greece

Methods

This contralateral eye study included 44 eyes of 22 patients 22 eyes were treated with topography-guided LASIK and the fellow eye of each patient was treated with SMILE. The following parameters were evaluated preoperatively and up to 48 months postoperatively: uncorrected distance vision acuity (UDVA), corrected distance vision acuity (CDVA), refractive error, corneal keratometry, contrast sensitivity,and retreatments

Results

At 48 months, 92.4% of the topography-guided LASIK group and 79.2% of the SMILE group had UDVA of 20/20 (P < .002) and 62.3% and 34.5%, respectively, had UDVA of 20/16 (P < .002). Spherical equivalent refraction (±0.50 D) was 95.5% for the LASIK group and 76.3% for the SMILE group (P < .002). Residual refraction cylinder (≤ 0.25 D) was 81.8% for the LASIK group and 50% for the SMILE group (P < .001). Two eyes of the SMILE group underwent PRK retreatment.

Conclusions

LASIK and SMILE are both lamellar femtosecond laser assisted laser refractive corneal procedures. Long term comparison of the two techniques in a randomized contralateral eye study both demonstrated good efficacy and safety. LASIK topographic customization appears to offer superior accuracy. Topography-guided LASIK was superior in all visual performance parameters studied, over long-term follow-up.