Femto-LASIK Versus SBK-LASIK With Mechanical Microkeratome
Purpose
To assess the safety, reproducibility and efficacy of the Moria One Use-Plus SBK microkeratome for thin-flap LASIK similar to Femto flaps.
Methods
It has been evaluated with single use rings (plastic and composite) and with metal rings. The anterior OCT Optovue - RTvue was used to assess central corneal thickness, flap thickness at apex, 3mm and 6 mm from it, the meniscus of the flap and how far from Bowman’s layer. After flap creation, the hinge width and flap diameters were measured.
Results
With 90 head any ring the diameter of the flap was 9.38 ± 0.32 (8.80-10.00), the estromal ablation was 9.07 ± 0.29 (8.30-9.80), the hinge size was 2.89 ± 2.74 (0.00-5.80) (in mm) and the flap thickness (µ)105.27 ± 15.46 (70-141); with 90 head new blades and with metallic ring the diameter of the flap was 9.45 ± 0.21 (9.10-9.80), the estromal ablation was 9.23 ± 0.22 (8.80-9.60), the hinge size was 2.18 ± 1.61 (0.00–5.00) (in mm) and the flap thickness (µ) 91.59 ± 12.58 (63-115).
Conclusion
The Moria One Use-Plus SBK for Thin-Flap LASIK is safe and efficiently produces smooth stromal beds and also good quality. This prospective study shows that the Moria One Use-Plus SBK microkeratome can safely, reproducible and reliable achieve SBK (Sub-Bowman's Keratomileusis) flaps as good as Femto flaps but without any Femtosecond technology.