ESCRS - PP03.02 - 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 2023 - 41st Congress of the ESCRS

Reference: PP03.02 | DOI: 10.82333/0jj3-j666

Authors: Dimitrios Machairas* 1 , Eleni Konstantinidou 1 , Despoina Karadimou 1 , Athanasios Zisimopoulos 1 , Anastasios J. Kanellopoulos 2 , Alexandros John Kanellopoulos 1

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

Both LASIK and Smile are safe and effective inmyopic refractive corrections; This studycompares the long-term safety and efficacy of topography-guided LASIK vs. contralateral eye SMILE formyopia and myopic astigmatism correction. In this study wecompare the long-term safety and efficacyof topography-guided LASIKvs. contralateral eye SMILE for myopia and myopic astigmatismcorrection.

LaserVision Ambulatory Eye Surgery Unit, Athens,

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

At 48 months, 92.4% of the topography-guided LASIKgroup and 79.2% of the SMILE grouphad 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 SMILEgroup (P < .002). Residual refraction cylinder (≤ 0.25 D) was 81.8% for the LASIK group and 50% for theSMILE group (P < .001). Two eyes of theSMILE group underwent PRK retreatment.

LASIK and SMILE are both lamellar femtosecond laser assisted laser refractive cornealprocedures. Long term comparison of the two techniques in a randomized contralateral eye study bothdemonstrated goodefficacy and safety. LASIK topographic customization appears to offer superioraccuracy.Topography-guided LASIK was superior in all visual performance parameters studied, overlong-term follow-up