May 2008
Volume 49, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2008
Visual and Clinical Outcomes of Wavefront Guided Myopic Lasik With Iris Registration
Author Affiliations & Notes
  • O. Muftuoglu
    Ophthalmology, UT Southwestern Medical School, Dallas, Texas
  • P. Prasher
    Ophthalmology, UT Southwestern Medical School, Dallas, Texas
  • M. DiPascuale
    Ophthalmology, UT Southwestern Medical School, Dallas, Texas
  • V. V. Mootha
    Ophthalmology, UT Southwestern Medical School, Dallas, Texas
  • S. Verity
    Ophthalmology, UT Southwestern Medical School, Dallas, Texas
  • W. L. Bowman
    Ophthalmology, UT Southwestern Medical School, Dallas, Texas
  • D. H. Cavanagh
    Ophthalmology, UT Southwestern Medical School, Dallas, Texas
  • J. P. McCulley
    Ophthalmology, UT Southwestern Medical School, Dallas, Texas
  • Footnotes
    Commercial Relationships  O. Muftuoglu, None; P. Prasher, None; M. DiPascuale, None; V.V. Mootha, None; S. Verity, None; W.L. Bowman, None; D.H. Cavanagh, None; J.P. McCulley, None.
  • Footnotes
    Support  Research to prevent blindness
Investigative Ophthalmology & Visual Science May 2008, Vol.49, 5641. doi:
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    • Get Citation

      O. Muftuoglu, P. Prasher, M. DiPascuale, V. V. Mootha, S. Verity, W. L. Bowman, D. H. Cavanagh, J. P. McCulley; Visual and Clinical Outcomes of Wavefront Guided Myopic Lasik With Iris Registration. Invest. Ophthalmol. Vis. Sci. 2008;49(13):5641.

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

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Abstract

Purpose: : To evaluate the visual and clinical outcomes of wavefront-guided laser in situ keratomileusis (LASIK) with iris registration platform (VISX CustomVue, VISX Inc., Santa Clara, CA) in myopic correction.

Methods: : Forty-two eyes of 23 patients were enrolled in a prospective multisurgeon clinical outcome study. Uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), and manifest refraction were measured at 1 day, 1 week, 1 month, and 3 months postoperatively. Contrast sensitivity with and without glare was measured at 1 month and 3 months, and higher-order aberrations (HOAs) were measured at 3 months postoperatively.

Results: : Mean preoperative spherical equivalent (SE) was reduced from -3.28 ± 2.2 D (range: -0.75 to -9.5 D) to a SE of -0.11 ± 0.28 D (range: 0 to -1.25) at 1 month and -0.12 ± 0.22 D (range: +0.25 to -0.75 D) at 3 months (P < 0.001). Ninety-five percent of eyes at 1 month and 92.9% of eyes at 3 months were within ± 0.5 D of emmetropia. At 1 and 3 months, UCVA was 20/20 or better in 76.2.3% and 80.9%, respectively. No eye lost more than 1 line of BSCVA. Compared to preoperative levels, the mean contrast sensitivity with and without glare increased in all spatial frequencies at 3 months postoperatively. The mean total higher-order aberrations increased from 0.45 ± 0.14 µm preoperatively to 0.52 ± 0.27 µm at 3 months postoperatively without statistical significance (P = 0.144).

Conclusions: : A wavefront-guided LASIK platform with iris registration is safe, effective, and delivers excellent visual results for the correction of low to moderate myopia.

Keywords: refractive surgery: optical quality • myopia • contrast sensitivity 
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