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A Behrens, A Caputo, FY Torres, LA Rodríguez, E Suárez; Refractive Outcome after LASIK using a Novel Microkeratome Head for Thin Corneas . Invest. Ophthalmol. Vis. Sci. 2002;43(13):2080.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: To report the complications in flap creation and the postoperative outcome using a novel microkeratome head for Laser in situ Keratomileusis (LASIK) for thin corneas and/or high corrections. Methods: A total of 155 patients (305 eyes) were included in the study, 110 females, with a mean age of 33.08 years (SD 8.95). The mean preoperative spherical equivalent was -7.58 D (SD 3.98) ranging from -0.75 D to -22.25 D. A manually-guided microkeratome (Moria LSK One, Antony, France) with a 100 µm cut-depth microkeratome head was used for flap creation, and a 193 nm ArF excimer laser (Keratom II-Coherent-Schwind, or Schwind Keratom Multiscan, Schwind eye-tech-solutions GmbH & Co. KG, Kleinostheim, Germany) was used for the tissue ablation. Tobramycin 0.3%-dexamethasone 0.1% suspension was administered every four hours for two weeks as standard postoperative treatment. Results: No major complications were encountered. No button-holes, incomplete flaps or free-caps were obtained. In 13 eyes (4.26 %), mild stromal striae were detected. In 2 eyes (0.66 %), these striae were visually disturbing and required flap stretching. The mean preoperative spherical equivalent was reduced to -0.71 D at 3 months and to -0.40 D one year postoperative. The calculated mean residual stromal bed was 314.82 µm (SD 44.10). No lines of best corrected visual acuity were lost. Conclusions: Only minimal complications occurred after the use of a thin flap. In our series, the 100 µm cut-depth microkeratome head was safe and effective in achieving corneal flaps for patients with thin corneas or higher corrections.
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