December 2002
Volume 43, Issue 13
Free
ARVO Annual Meeting Abstract  |   December 2002
Refractive Outcome after LASIK using a Novel Microkeratome Head for Thin Corneas
Author Affiliations & Notes
  • A Behrens
    Ophthalmology Centro Medico Docente La Trinidad Caracas Venezuela
  • A Caputo
    Ophthalmology Centro Médico Docente La Trinidad Caracas Venezuela
  • FY Torres
    Ophthalmology Centro Médico Docente La Trinidad Caracas Venezuela
  • LA Rodríguez
    Ophthalmology Centro Médico Docente La Trinidad Caracas Venezuela
  • E Suárez
    Ophthalmology Centro Médico Docente La Trinidad Caracas Venezuela
  • Footnotes
    Commercial Relationships   A. Behrens, None; A. Caputo, None; F.Y. Torres, None; L.A. Rodríguez, None; E. Suárez, None.
Investigative Ophthalmology & Visual Science December 2002, Vol.43, 2080. doi:
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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)

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Abstract

Abstract: : 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.

Keywords: 548 refractive surgery: LASIK • 546 refractive surgery: comparative studies • 544 refractive surgery 
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