May 2006
Volume 47, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2006
Modifications In Optical Aberrations Induced By Corneal In Flap In Lasik
Author Affiliations & Notes
  • J.M. Paulin
    Cornea / Enfermedades Externas, Instituto de Oftalmologia Fundaciòn Conde de Valenciana, Estado de Mexico, Mexico
  • E.O. Graue
    Cornea / Enfermedades Externas, Instituto de Oftalmologia Fundaciòn Conde de Valenciana, Estado de Mexico, Mexico
  • R. Velazquez
    Cornea / Enfermedades Externas, Instituto de Oftalmologia Fundaciòn Conde de Valenciana, Estado de Mexico, Mexico
  • A. Haber
    Cornea / Enfermedades Externas, Instituto de Oftalmologia Fundaciòn Conde de Valenciana, Estado de Mexico, Mexico
  • T. Ramirez
    Cornea / Enfermedades Externas, Instituto de Oftalmologia Fundaciòn Conde de Valenciana, Estado de Mexico, Mexico
  • R. Suarez
    Cornea / Enfermedades Externas, Instituto de Oftalmologia Fundaciòn Conde de Valenciana, Estado de Mexico, Mexico
  • Footnotes
    Commercial Relationships  J.M. Paulin, None; E.O. Graue, None; R. Velazquez, None; A. Haber, None; T. Ramirez, None; R. Suarez, None.
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science May 2006, Vol.47, 57. doi:
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      J.M. Paulin, E.O. Graue, R. Velazquez, A. Haber, T. Ramirez, R. Suarez; Modifications In Optical Aberrations Induced By Corneal In Flap In Lasik . Invest. Ophthalmol. Vis. Sci. 2006;47(13):57.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: : To determine the modifications in the optical aberrations induced by the corneal flap in LASIK.

Methods: : Prospective interventional study. Thirteen patients who were going to be somitted to LASIK surgery were included. A wave front analysis was realized before the procedure. After the corneal flap was made, it was repositioned and another wavefront analysis was done. Once the study was completed, the flap was lifted so the corneal ablation could be aplied, completing the procedure

Results: : Twenty five eyes were studied. A clinically significant increase in the spherical aberration was observed (pre: 0.17 ± 0.15, post: 0.32 ± 0.19; p 0.002). A clinically significant increase in the root mean Square RMS for a 3 mm pupil was also observed (pre: 0.26 ± 0.13, post: 0.90 ± 0.99; p 0.007). The aberrometer suggested refraction was not statistically significant modified by the corneal flap.

Conclusions: : The corneal flap creation induces an statistically significant increase in the spherical aberration without modifying the refractive error.

Keywords: refractive surgery: comparative studies • refractive surgery: other technologies 
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