Wavefront Results Of First In Human Klex Case Series For Simple Myopic Astigmatism
Published 2025 - 43rd Congress of the ESCRS
Reference: PP12.12 | Type: Free paper | DOI: 10.82333/t1s0-pp87
Authors: Karan Pandey* 1 , Mor Dickman 1 , Ruth Lapid-Gortzak 2 , Ivanka van der Meulen 2
1Ophthalmology,UMC Utrecht,Utrecht,Netherlands, 2Ophthalmology,Amsterdam UMC,Amsterdam,Netherlands
Purpose
This study evaluated higher-order aberrations (HOAs) following keratorefractive lenticule extraction for simple myopic astigmatism, performed with the Schwind ATOS Femtosecond laser and static cyclotorsion correction. Ocular wavefront measurements (OSIRIS-T, CSO Italia) and corneal wavefront assessments (MS39, CSO Italia) were used to determine whether this flapless technique induces minimal HOAs, particularly coma, and preserves overall optical quality.
Setting
Eye Clinic Svjetlost, Zagreb, Croatia
Methods
Forty-four eyes without a spherical component after full cycloplegic refraction were included. All procedures were performed by the same surgeon (IG). Ocular wavefront HOAs at a 4 mm pupil diameter were measured using OSIRIS-T, while corneal wavefront data at a 6 mm zone were obtained from the MS39. Static cyclotorsion compensation was applied, and postoperative evaluations at three months included visual acuity and wavefront analysis.
Results
Preoperative ocular wavefront HOAs at 4 mm totaled 0.16 µm, increasing slightly to 0.20 µm at three months. Coma rose from 0.08 µm to 0.11 µm over the same period. Corneal wavefront HOAs at 6 mm measured 0.56 µm preoperatively and 0.60 µm postoperatively, while corneal coma changed from 0.35 µm to 0.34 µm. These minor differences indicate minimal induction of aberrations and excellent optical outcomes.
Conclusions