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. 2016 Sep 1:10:1691-9.
doi: 10.2147/OPTH.S111328. eCollection 2016.

Comparison of self-reported quality of vision outcomes after myopic LASIK with two femtosecond lasers: a prospective, eye-to-eye study

Christopher S Sáles  1 , Edward E Manche  2
Affiliations

Comparison of self-reported quality of vision outcomes after myopic LASIK with two femtosecond lasers: a prospective, eye-to-eye study

Christopher S Sáles et al. Clin Ophthalmol. .

Abstract

Purpose: To compare self-reported quality of vision (QoV) outcomes after myopic LASIK (laser-assisted in situ keratomileusis) with two femtosecond lasers.

Design: Prospective, randomized, eye-to-eye study.

Methods: Consecutive myopic patients were treated with wavefront-guided LASIK bilaterally. Eyes were randomized according to ocular dominance. The flap of one eye was made with the IntraLase FS 60 kHz femtosecond laser with a conventional 70° side-cut, and the flap of the fellow eye was made with the IntraLase iFS 150 kHz femtosecond laser with an inverted 130° side-cut. Patients completed the validated, Rasch-tested, linear-scaled 30-item QoV questionnaire preoperatively and at Months 1, 3, 6, and 12.

Results: The study enrolled 120 fellow eyes in 60 patients. None of the measured QoV parameters exhibited statistically significant differences between the groups preoperatively or at any postoperative time point.

Conclusion: Creating LASIK flaps with an inverted side-cut using a 150 kHz femtosecond laser and with a conventional 70° side-cut using a 60 kHz femtosecond laser resulted in no significant differences in self-reported QoV assessed by the QoV questionnaire.

Keywords: LASIK; femtosecond; myopia; quality of vision; wavefront-guided.

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Figures

Figure 1
Figure 1
Schematic of inverted, left, vs conventional, right, side cut LASIK flaps. Abbreviation: LASIK, laser-assisted in situ keratomileusis.
Figure 2
Figure 2
Self-reported QoV outcomes after femtosecond-assisted myopic LASIK with either a 130° inverted side-cut made with a 150 kHz laser or a 70° conventional side cut made with a 60 kHz laser (QoV items 1–15). Note: All P>0.05. Abbreviations: QoV, quality of vision; LASIK, laser-assisted in situ keratomileusis; pre-op, pre-operative.
Figure 3
Figure 3
Self-reported QoV outcomes after femtosecond-assisted myopic LASIK with either a 130° inverted side-cut made with a 150 kHz laser or a 70° conventional side-cut made with a 60 kHz laser (QoV items 16–30). Note: All P>0.05. Abbreviations: QoV, quality of vision; LASIK, laser-assisted in situ keratomileusis; pre-op, pre-operative.
See this image and copyright information in PMC

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