title: [Higher-order aberrations in eye implanted with aspherical intraocular lenses].
abstract: OBJECTIVE
  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 microm) and the N4-18YG (-0.23 +/- 0.08 microm) than in the MZ30BD (0.17 +/- 0.10 microm), the YA60BBR (0.16 +/- 0.08 microm) and the AU6K (0.04 +/- 0.06 microm). 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.
authors: Kozaki Eye Clinic, Japan. rkosaki@iris.ocn.ne.jp
authors: Ryo
authors: R
authors: Kosaki
authors: Jun
authors: J
authors: Kozaki
authors: Naoyuki
authors: N
authors: Maeda
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000009:adverse effects*; D007910:Lenses, Intraocular / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D012029:Refraction, Ocular / Q000502:physiology*; D016896:Treatment Outcome; D014785:Vision, Ocular / Q000502:physiology*; D014792:Visual Acuity / Q000502:physiology*