Safety, Efficacy, and Predictability of LASIK for Correction of Myopia Using Latest 1050-Hz Scanning-Spot Laser System
Narrative Responses:
Purpose
To evaluate the visual outcomes, safety, stability, efficacy, and predictability of LASIK for myopia using the latest 1050 Hz excimer laser, SCHWIND AMARIS 1050RS (SCHWIND) for visual correction and Femto LDV Z6 (Ziemer) for corneal flap creation.
Methods
In this retrospective, non-comparative study, 1,514 eyes of 770 myopic patients were included. The patients’ mean age was 32.66 ±7.76 years old (range: 18 to 58). Preoperative mean uncorrected and corrected visual acuity (UDVA, CDVA) were 20/250 and 20/12.5, respectively. The preoperative mean manifest refraction spherical equivalent (MRSE) was -4.27 ± 1.94 diopters (D). After flap creation with Femto LDV Z6, myopic correction using SCHWIND AMARIS 1050RS was performed. Preoperative/postoperative UDVA, CDVA and MRSE were taken and evaluated.
Results
The mean UDVA and CDVA at 3 months were 20/12.5. The mean MRSE was 0.34 ± 0.40 D at 3 months. At 3 months after LASIK, 96.2% of the eyes achieved 20/16 or better vision (UDVA) and 99.5% of the eyes were 20/20 or better. Significant improvements were found in UDVA, CDVA and MRSE (P<0.0001). The MRSE was within ±0.50 D for 77.9% of the patients and within ±1.00 D for 95.2% of the patients. In terms of predictability, 80.7% of the eyes were within ±0.50 D and 97.0% were within ±1.00 D. No intra or postoperative complications were observed.
Conclusion
Our study showed that LASIK using SCHWIND AMARIS 1050RS and Femto LDV Z6 is effective, predictable, and safe for the correction of myopic refractive errors.