Influence of spheric and aspheric IOLs on visual acuity and contrast sensitivity
Halás, M.; Pesko, K.; Oláh, Z.; Krásnik, V.; Strmen, P.
Ceska a Slovenska Oftalmologie Casopis Ceske Oftalmologicke Spolecnosti a Slovenske Oftalmologicke Spolecnosti 66(5): 209-212
2010
ISSN/ISBN: 1211-9059 PMID: 21394977 Document Number: 640670
To compare best corrected visual acuity and contrast sensitivity in patients with aspheric and spheric intraocular lens (IOL) after uncomplicated cataract surgery in photopic and mesopic conditions. 38 eyes after uncomplicated cataract surgery were divided in two groups. A (18 eyes, average 69,5 +/- 6,89 years, spheric IOLs Softec 1, Lenstec, Inc. USA); B (20 eyes, average 69,47 +/- 9,44 years, aspheric IOLs Softec HD, Lenstec, Inc. USA). Follow up 3.-5. day and 4.-5. week postoperatively. Best corrected visual acuity in group A was 20/23, in group B was 20/22. Contrast sensitivity in photopic conditions between group A and B were nonsignificant. Contrast sensitivity in scotopic conditions was in group B (aspheric IOLs) significant in comparison to group A (spheric IOLs). Aspheric IOLs in scotopic light conditions provide patients with significant better contrast sensitivity than in patients with spheric IOLs.