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Published on: July 6, 2015
Thin-flap laser in situ keratomileusis with femtosecond-laser technology
George D Kymionis1, George A Kontadakis, Michael A Grentzelos
1Institute of Vision and Optics, University of Crete, Heraklion, Greece. kymionis@med.uoc.gr
Purpose:
To evaluate the results of thin-flap laser in situ keratomileusis (LASIK) using a femtosecond-laser platform for flap creation.
Setting:
Institute of Vision and Optics, Faculty of Medicine, University of Crete, Heraklion, Greece.
Design:
Prospective interventional case series.
Methods:
Patients had LASIK with the FS200 femtosecond laser for flap creation and the Allegretto Wave Eye-Q excimer laser. Flap thickness was set at 105 μm. All eyes were examined 1 month postoperatively. Flap thickness was assessed with anterior segment optical coherence tomography using the manual flap tool at 5 locations on a horizontal B scan.
Results:
This study comprised 50 eyes of 25 patients (mean age 28 years ±5.72 [SD]); 42 eyes completed 6 months of follow-up. Preoperatively, the mean sphere was -3.61 ± 1.87 diopters (D) and the mean cylinder, -1.08 ± 1.23 D. Six months postoperatively, no eye lost lines of corrected distance visual acuity (CDVA), 29% gained 1 line, and 7% gained 2 lines. The mean spherical equivalent was -0.03 ± 0.42 D (range -0.88 to +0.88 D); 86% had an uncorrected distance visual acuity of 20/20 or better. The mean central flap thickness at 1 month was 102.98 ± 6.33 μm (range 91 to 114 μm). There were no intraoperative or postoperative complications.
Conclusions:
No significant complications occurred after treatment with this new femtosecond-laser platform in thin-flap LASIK. Clinical (visual and refractive) results were satisfactory in terms of safety, predictability, and stability.
