Visual performance after LASIK for a Q-optimized and a standard ablation algorithm.
We test visual performance after LASIK (laser in situ keratomileusis) for a Q-optimized ablation algorithm and one based on the Munnerlyn formula. The visual functions tested include aberrometry, monocular and binocular contrast sensitivity function (CSF), and a discrimination test under low-illumination conditions. This test is useful to quantify night-vision disturbances. A total of 102 patients took part in the experiments, and visual data were taken before (with best correction) and after LASIK. Results show a deterioration in aberrometry, CSF, binocular summation, and discrimination index for the two algorithms tested, although this deterioration is significantly lower for the Q-optimized algorithm.
Clínicas Novovisión, Paseo de la Castellana, Madrid, Spain.
César
C
Villa
José R
JR
Jiménez
Rosario G
RG
Anera
Ramón
R
Gutiérrez
Enrique
E
Hita
D000328:Adult; D000465:Algorithms; D015350:Contrast Sensitivity / Q000502:physiology; D003315:Cornea / Q000503:physiopathology* / Q000601:surgery; D019781:Corneal Topography; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000379:methods*; D008027:Light; D009216:Myopia / Q000503:physiopathology / Q000601:surgery; D011184:Postoperative Period; D016896:Treatment Outcome; D015348:Vision, Binocular / Q000502:physiology*