Resumen:
Background: To compare the visual and refractive outcomes after myopic LASEK using three different excimer
lasers and standardized surgical and mitomycin C (MMC) application protocols.
Methods: In this retrospective, observational cohort study, we examined 122 eyes treated with Allegretto, 135 eyes
treated with Esiris and 137 eyes treated with Technolas excimer lasers. All eyes were treated under the same
surgical protocol, and a standardized MMC dosage was used. The three groups were refraction-matched, and both
visual and refractive outcomes were evaluated at 1 and 7 days and 1 and 3 months after surgery.
Results: At 3 months postsurgery, Allegretto provided significantly better outcomes than Esiris and Technolas in
terms of postoperative uncorrected distance visual acuity (UDVA) (1.11 ± 0.2 vs 1.01 ± 0.2 vs 0.98 ± 0.2) (P = 0.0001),
corrected distance visual acuity (CDVA) (1.13 ± 0.2 vs 1.10 ± 0.1 vs 1.04 ± 0.2) (P = 0.0001), residual sphere (− 0.01 ±
0.2 vs + 0.29 ± 0.7 vs + 0.27 ± 0.6) (P = 0.0001), and efficacy index (0.99 ± 0.2 vs 0.90 ± 0.2 vs 0.91 ± 0.2) (P = 0.0004).
Conclusions: We found slightly better visual and refractive outcomes in the Allegretto group at 3 months post-o...