Visual quality after wavefront-guided LASIK for myopia.
This study evaluated the visual quality after wavefront-guided laser in situ keratomileusis (LASIK) for treating myopia. Thirty-two eyes with moderate myopia (-5.78 - -2.17D) and 25 eyes with high myopia (-7.78 - -6.17D) were prospectively reviewed. The contrast sensitivity (CS), glare and the total higher order aberrations (HOA) were measured before and 1 week, 1 month and 2 months after LASIK. The pupil diameter was measured at day- and night-time illumination. The CS and glare at all spatial frequencies were not reduced after wavefront-guided LASIK (p<0.05) and the difference between the moderate and high myopia group was not significant. No significant correlation was found between the amounts of myopia and the postoperative CS (p>0.05). The area under the log contrast sensitivity function (AULCSF) showed no correlation with the total HOA (r2=-0.071, p=0.612, between the daytime AULCSF and the total HOA with a 4 mm entrance pupil, r2=-0.176, p=0.260, between the nighttime AULCSF and the total HOA with a 6 mm entrance pupil). There was no decrease in CS and glare after wavefront-guided LASIK for myopia. In conclusion, wavefront-guided LASIK based on the individual ablation patterns is a good option for refractive surgery to improve the visual quality in both moderate and high myopia cases.
Kim
Hyojin
H
Department of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Joo
Choun-Ki
CK
D000328:Adult; D015897:Comorbidity; D005260:Female; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000706:statistics & numerical data*; D007723:Korea / Q000453:epidemiology; D008297:Male; D009216:Myopia / Q000175:diagnosis* / Q000453:epidemiology / Q000601:surgery*; D011379:Prognosis; D020127:Recovery of Function; D016896:Treatment Outcome; D014786:Vision Disorders / Q000175:diagnosis* / Q000453:epidemiology / Q000517:prevention & control*; D014787:Vision Tests; D014792:Visual Acuity