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. 2013 Jun 18;6(3):350-5.
doi: 10.3980/j.issn.2222-3959.2013.03.18. Print 2013.

Comparison of visual acuity, refractive results and complications of femtosecond laser with mechanical microkeratome in LASIK

Cemile Banu Cosar  1 , Tansu Gonen, Murat Moray, Asim Bozkurt Sener
Affiliations

Comparison of visual acuity, refractive results and complications of femtosecond laser with mechanical microkeratome in LASIK

Cemile Banu Cosar et al. Int J Ophthalmol. .

Abstract

Aim: 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).

Conclusion: 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.

Keywords: Femtec; Hansatome; femtosecond laser; laser in situ keratomileusis; microkeratome.

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Figures

Figure 1
Figure 1. Spherical equivalent refractive accuracy at 3 months postoperatively in the Femtec grop and the Hansatome group.
Figure 2
Figure 2. Refractive astigmatism at 3 months postoperatively in the Femtec group and the Hansatome group.
Figure 3
Figure 3. Stability of spherical equivalent refraction after LASIK
A: Femtec group; B: Hansatome group.
Figure 4
Figure 4. Spherical Equivalent Attempted vs Acchieved at 3 months postoperatively
A: Femtec group; B: Hansatome group.
Figure 5
Figure 5. Uncorrected distance visual acuity at 3 months postoperatively in the Femtec group and the Hansatome group.
See this image and copyright information in PMC

References

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