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  • Title: Efficacy, safety, and flap dimensions of a new femtosecond laser for laser in situ keratomileusis.
    Author: Vryghem JC, Devogelaere T, Stodulka P.
    Journal: J Cataract Refract Surg; 2010 Mar; 36(3):442-8. PubMed ID: 20202543.
    Abstract:
    PURPOSE: To evaluate the clinical results of a preproduction femtosecond laser for flap creation in laser in situ keratomileusis (LASIK). SETTING: Private practice, Brussels, Belgium. METHODS: This study comprised myopic eyes with a plano target refraction and a target flap thickness of 110 microm. The LASIK flap was created with a Ziemer LDV femtosecond laser. Prospective evaluation included flap dimensions, intraoperative and postoperative complications, and visual outcomes. RESULTS: Sixty-three patients (111 eyes; mean age 37.2 years) were evaluated. Preoperatively, the mean corrected distance visual acuity (CDVA) was 1.34 (Snellen) and the mean manifest refraction spherical equivalent (MRSE), -4.91 diopters (D) +/- 2.45 (SD). Six months postoperatively, the mean CDVA was 1.33; the mean MRSE, -0.05 +/- 0.3 D; and the mean uncorrected distance visual acuity (UDVA), 1.27. The UDVA was 20/25 or better in 98.2% of eyes and 20/20 or better in 94.6% of eyes. The MRSE was within +/-0.50 D in 95.5% of eyes and within +/-1.00 D in 99.1% of eyes. The cylinder was 0.50 D or less in 99.1% of eyes. The mean flap thickness was 106.6 +/- 12.6 microm. The most frequent complications were epithelial sloughing (10.8%), a decentered cut (4.5%), flap adhesions (5.4%), a slightly irregular flap border (5.4%), and microstriae (5.4%); all were mild. CONCLUSIONS: Overall, the flap dimensions and refractive results were predictable and the complication rate was acceptable after LASIK using the new femtosecond laser for flap creation.
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