[Visual function after cataract surgery in patients with an aspherical lens without spherical aberration].
OBJECTIVE
To assess the quality of vision in pseudophakic patients with aspheric intraocular lens (IOL) without spherical aberration compared to patients with spherical IOL.


METHODS
Twenty-four patients (48 eyes) undergoing cataract surgery were randomly divided into two groups: 12 patients received an aspheric IOL in both eyes and 12 received spherical IOLs. The integrity of ocular functions was assessed with clinical examination and multifocal electroretinogram. Postoperative evaluations were conducted 3 months after surgery. Refraction, best-corrected visual acuity, contrast sensitivities, and wavefront ocular aberrations were analyzed. Patient-centered visual functions were evaluated according to the Activities of Daily Vision Scale.


RESULTS
The ADVS score was better in the aspheric IOL group (p=0.01), particularly concerning the best-corrected near vision (p=0.006). Refraction and BCVA were similar. Contrast sensitivities in photopic conditions was better in the aspherical IOL group (p<0.001). Higher-order aberration was not different, except from spherical aberration (p=0.022).


CONCLUSIONS
Patients with the aspherical IOLs felt they had better quality of vision, particularly near vision, compared with the spherical IOL group. These patient-centered benefits were associated with better photopic contrast sensitivity and reduced spherical aberration.
Denoyer
A
A
Service d'Ophtalmologie, Centre Hospitalo-Universitaire Bretonneau, Tours, France.
Halfon
J
J
Majzoub
S
S
Pisella
P-J
PJ
D000368:Aged; D000369:Aged, 80 and over; D002387:Cataract Extraction; D015350:Contrast Sensitivity; D004596:Electroretinography; D004867:Equipment Design; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D055095:Optics and Photonics; D019591:Pseudophakia / Q000503:physiopathology*; D012720:Severity of Illness Index; D016896:Treatment Outcome; D014787:Vision Tests; D014792:Visual Acuity