Purpose: To compare efficacy of aspherical intraocular lenses (IOLs) with spherical IOLs by measuring the ocular and internal higher-order aberrations.
Methods: Two hundred four eyes of 145 patients were evaluated at Kozaki eye clinic after phacoemulsification with implantation of 2 aspherical IOLs (45 eyes with the Hoya FY60AD, and 43 eyes with the Nidek N4-18YG); or 3 spherical IOLs (38 eyes with the Hoya YA60BBR, 32 eyes with the Kowa AU6K and 46 eyes with the Alcon MZ30BD). The 3rd and 4th higher-order aberrations (HOAs) were measured with KR9000PW for a 6-mm-diameter pupil, and then the ocular and internal HOAs were compared between the groups.
Results: The mean internal spherical aberrations at 1 month after surgery were significantly lower in the FY60AD (-0.14±0.07 μm) and the N4-18YG (-0.23±0.08 μm) than in the MZ30BD (0.17±0.10 μm), the YA60BBR (0.16±0.08 μm) and the AU6K (0.04±0.06 μm). The mean ocular HOAs were significantly lower in the FY60AD and the N4-18YG than in the other spherical IOLs. The negative correlation between IOL power and spherical aberrations after surgery was significant for both the aspherical IOL groups of FY60AD and N4-18YG.
Conclusions: The correlation between the IOL power and spherical aberrations, and the HOAs after surgery varied depending on the type of IOL.
Nippon Ganka Gakkai Zasshi (J Jpn Ophthalmol Soc) 117: 27-34, 2013.