Pursuing "Super-Vision": A Study On The Efficacy Of Wavefront-Guided Femtosecond Lasik
Published 2024 - 42nd Congress of the ESCRS
Reference: PP15.02 | Type: Free paper | DOI: 10.82333/v65e-qs42
Authors: Dalia Denisse Ng Aleman* 1 , Andres Inzunza 2 , Oscar Eduardo Sánchez Aguilar 2 , Ricardo Acosta González 1
1Grupo oftalmológico Acosta,Hospital Puerta de Hierro,Zapopan,Mexico, 2Centro de retina medica quirurgica,Hospital Puerta de Hierro,Zapopan,Mexico
Purpose
LASIK remains the leading procedure in laser vision correction, known for its favorable visual outcomes, fast recovery post-surgery, and acceptable safety profile. The evolution of femtosecond laser technology for creating the corneal flap has elevated the safety standards of what is now commonly referred to as bladeless LASIK, reducing the risks associated with intraoperative flap complications.
The wavefront-guided method constructs a customized ablation pattern by utilizing preoperative measurements of an eye's total aberrations, obtained through an aberrometer. This technique, known as wavefront-guided ablation, outperforms traditional methods by reducing the creation of higher-order aberrations.
Setting
The study was conducted at a high-volume tertiary referral center specializing in refractive surgery.
Methods
We conducted a retrospective, cross-sectional study. The primary outcome of the study was the proportion of patients attaining 20/15 vision or better (LogMar -0.125), at three months following wavefront-guided femtosecond LASIK. A total of 240 eyes were included in the analysis. Secondary outcomes included examining changes in postoperative visual acuity. Data normality was assessed with distribution plots. A T-test was applied to compare the mean uncorrected visual acuity before and after surgery.
Results
Among the 240 eyes analyzed, 60.8% attained an uncorrected visual acuity of 20/15 (LogMAR -0.125) or better. The mean presurgical uncorrected visual acuity was 0.71 (95% CI: 0.66-0.77) LogMAR, improving to -0.068 (95% CI: -0.082 to -0.053) LogMAR post-surgery. The observed change in LogMAR was 0.78 (95% CI: 0.72-0.83), statistically significant (p<0.0001).
Conclusions
A high proportion of patients undergoing wavefront-guided femtosecond LASIK attained an uncorrected visual acuity of 20/15 (LogMAR -0.125) or better. These findings confirm the effectiveness of wavefront-guided femtosecond LASIK in achieving superior visual outcomes, with a substantial proportion of patients attaining "super-vision."