Six-Month Clinical Outcomes Of Plasma Formation-Optimized Keratorefractive Lenticule Extraction (Klex)
Published 2025 - 43rd Congress of the ESCRS
Reference: PP12.15 | Type: Free paper | DOI: 10.82333/ga67-q197
Authors: Takaya Suzuki* 1 , Ayako Sawaki 2 , Naoki Isogai 3 , Yuki Suzuki 3 , Tomoaki Nakamura 3 , Takashi Kojima 3
1Chukyo Hospital,Nagoya,Japan, 2Nagoya Eye Clinic,Nagoya,Japan;Chukyo Hospital,Nagoya,Japan, 3Nagoya Eye Clinic,Nagoya,Japan
Purpose
This retrospective case series compared 6-month postoperative visual and refractive outcomes between plasma formation-optimized KLEx (P-KLEx) and conventional KLEx (C-KLEx).
Setting
Retrospective Case Series.
Methods
Patient records for KLEx surgery were reviewed and stratified based on a customized cavitation score. This score, derived from the pre- and post-laser images in the surgical report, classified eyes with scores below 17 as P-KLEx and those with scores 17 or above as C-KLEx. Postoperative evaluations included visual acuity and corneal higher-order aberrations (HOA).
Results
Out of 204 eyes, 103 were assigned to the C-KLEx group and 101 to the P-KLEx group. Mean logMAR uncorrected distance visual acuities were 0.01 ± 0.09 for C-KLEx and 0.01 ± 0.03 for P-KLEx (P = 0.62). Additionally, the P-KLEx group exhibited significantly lower induction of total HOAs, coma, and spherical aberration compared to the C-KLEx group (all P < .05).
Conclusions
Plasma formation-optimized KLEx, designed to minimize cavitation, offers visual outcomes comparable to conventional KLEx while reducing the induction of corneal higher-order aberrations.