Visual Outcomes And Corneal Higher-Order Aberrations After Small-Incision Lenticule Extraction: Comparison Of Postoperative Results Using A New Femtosecond Laser Platform
Published 2024 - 42nd Congress of the ESCRS
Reference: FP12.09 | Type: Free paper | DOI: 10.82333/ekwx-1n84
Authors: Ella (SeoYeon) Park* 1 , David Sung Yong Kang 2 , Samuel Arba-Mosquera 3 , Kang Yoon Kim 2 , Ikhyun Jun 1 , Kyoung Yul Seo 1 , Tae-im Kim 4
1Department of Ophthalmology,Yonsei University College of Medicine,Seoul,Korea, Republic Of, 2Eyereum Eye Clinic,Seoul,Korea, Republic Of, 3Research & Development,SCHWIND Eye-Tech-Solutions GmbH,Kleinostheim,Germany, 4Department of Ophthalmology,Yonsei University College of Medicine,Seoul,Korea, Republic Of;POSTECH Biotechnology Center,Pohang University of Science and Technology,Pohang,Korea, Republic Of
Purpose
To compare the clinical outcomes including visual acuity, refractive errors, and corneal higher-order aberrations (HOAs) after small-incision lenticule extraction (SMILE) using either the new VisuMax 800 or the standard VisuMax 500 femtosecond laser devices. To our knowledge, this is the first study to report the early visual outcomes and corneal/induced HOAs after SMILE using the newer generation femtosecond laser platform.
Setting
Yonsei University College of Medicine and Eyereum Eye Clinic, Seoul, South Korea.
Methods
Medical records were retrospectively reviewed and 456 eyes of 228 patients who received SMILE using either the VisuMax 800 or VisuMax 500 femtosecond laser for the treatment of myopia were included in the study. Visual acuity and corneal higher-order aberrations were measured preoperatively and at 1-day, 1-week, and 1-month after surgery. The results were compared between the two groups.
Results
Baseline characteristics including visual acuity, spherical equivalent, and average keratometry were not significantly different between the two groups(P>0.05). The 1-month postoperative UDVA of the VisuMax 800 and VisuMax 500 groups were -0.036±0.06D and -0.001±0.04, respectively(P<0.001*). Corneal HOAs, especially coma and spherical aberrations in particular, were significantly lower in patients treated with VisuMax 800(P<0.001*). The induced root-mean-square (RMS) HOAs, induced coma, and induced SA were significantly lower in patients treated with VisuMax 800(P<0.001*).
Conclusions
SMILE using the VisuMax 800 femtosecond laser achieved postoperative visual outcomes comparable to that of SMILE using the VisuMax 500, with a significantly smaller induction of corneal HOAs and faster visual recovery in the early postoperative period.