title: Comparison of visual acuity, refractive results and complications of femtosecond laser with mechanical microkeratome in LASIK.
abstract: OBJECTIVE
  To compare the outcomes of laser in situ keratomileusis (LASIK) performed with a femtosecond laser (Femtec, Technolas Perfect Vision GmbH, Germany) versus a mechanical microkeratome (Hansatome, Bausch and Lomb, USA) for the correction of myopia and astigmatism.
  
  
  METHODS
  In this retrospective study, patients who had undergone LASIK using the 80-kHz Femtec femtosecond laser were compared to age- and refraction-matched patients in whom the Hansatome microkeratome was used. Refractive and visual results 1 month and 3 months postoperatively, and complication rates were compared between the two groups.
  
  
  RESULTS
  A total of 280 eyes were analyzed (140 in each group). At 3 months postoperatively in the Femtec vs Hansatome group, spherical equivalent refraction was within ±1.00D of emmetropia in 140 vs 138 eyes (P=0.498), the cylinder was within ±0.50D in 137 vs 139 eyes (P=0.622), and the UDVA was 20/20 or better in 136 vs 137 eyes (P=0.724), respectively. There was no statistically significant difference in the complication rates between the two groups (P=0.099).
  
  
  CONCLUSIONS
  LASIK performed both with Femtec femtosecond laser and Hansatome microkeratome achieved satisfactory refractive and visual results at 3 months postoperatively, without significant differences in efficacy, safety, and complication rates between the two procedures.
authors.affiliation: Department of Ophthalmology, Acibadem University, Istanbul 34457, Turkey.
authors.forename: Cemile Banu
authors.initials: CB
authors.lastname: Cosar
authors.forename: Tansu
authors.initials: T
authors.lastname: Gonen
authors.forename: Murat
authors.initials: M
authors.lastname: Moray
authors.forename: Asim Bozkurt
authors.initials: AB
authors.lastname: Sener
keywords: Femtec; Hansatome; femtosecond laser; laser in situ keratomileusis; microkeratome