title: Visual and optical performance of eyes with different corneal spherical aberration implanted with aspheric intraocular lens.
abstract: OBJECTIVE
  To compare the visual and optical performance of eyes with different corneal spherical aberration (SA) implanted with spherical aberration-free intraocular lens (IOLs).
  
  
  METHODS
  Thirty-six patients with different corneal SA had phacoemulsification with implantation of spherical aberration-free IOLs. Patients were divided into 3 groups according to the value of preoperative corneal SA. Eyes with corneal SA <0.10µm were assigned to group A, those with 0.10 ≤corneal SA <0.20µm to Group B, and those with 0.20≤ corneal SA <0.35µm to Group C. Best-corrected visual acuity (BCVA), contrast sensitivity, corneal SA, total ocular aberrations, and depth of focus were recorded 3 months postoperatively. Distance-corrected near and intermediate visual acuity was studied to measure depth of focus.
  
  
  RESULTS
  BCVA and contrast sensitivity were similar between groups. There were no significant differences in distance-corrected near or intermediate visual acuity. Corneal SA was similar before and 3 months after surgery in the 3 groups. With a 5.0mm pupil diameter, root mean square values for total ocular higher-order aberrations (HOAs) were lower in groups A and B than in group C. Total ocular SA was lower in group A than in groups B and C. SA was also lower in group B than in group C. Coma and trefoil were similar between the groups.
  
  
  CONCLUSIONS
  Implantation of spherical aberration-free IOLs in eyes with different corneal SA results in similar visual performance at BCVA, contrast sensitivity and depth of focus.
authors: School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical College, Wenzhou 325027, Zhejiang Province, China.
authors: Xian-Hui
authors: XH
authors: Gong
authors: Qin-Xiang
authors: QX
authors: Zheng
authors: Na
authors: N
authors: Wang
authors: Ding
authors: D
authors: Chen
authors: Juan
authors: J
authors: Zhao
authors: Jin
authors: J
authors: Li
authors: Yun-E
authors: YE
authors: Zhao