title: The Optical Performance of Spherical and Aspheric Intraocular Lenses in Pediatric Eyes: A Comparative Study.
abstract: OBJECTIVE
  To compare the optical performance of aspheric intraocular lenses (IOLs) designed to correct the corneal spherical aberration versus spherical IOLs in pediatric eyes after cataract surgery.
  
  
  METHODS
  In this prospective study, 40 eyes of patients 6 to 16 years old with developmental cataract were randomly assigned to receive a spherical IOL or an aspheric IOL after pediatric cataract surgery. At 3 months postoperatively, the outcomes compared between the two groups were best-corrected visual acuity, contrast sensitivity, and wavefront aberrometry.
  
  
  RESULTS
  The mean best-corrected visual acuity was 0.32 ± 0.19 logMAR in the spherical IOL group and 0.28 ± 0.16 logMAR in the aspheric IOL group (P = .179). The aspheric IOL group showed better contrast sensitivity at 1.5, 3, and 6 cycles per degree than the spherical IOL group (P < .05). Total ocular aberrations, higher-order aberrations, and spherical aberrations were significantly lower in the aspheric IOL group (P < .05).
  
  
  CONCLUSIONS
  The results suggest that aspheric IOLs compensate for the spherical aberration of pediatric eyes. In comparison to spherical IOLs, eyes with aspheric IOLs had decreased ocular aberrations, particularly spherical aberration, which contributed to better contrast sensitivity in these eyes. Further studies are required to evaluate the role of aspheric IOLs in children.
authors.forename: Usha K
authors.initials: UK
authors.lastname: Raina
authors.forename: Anika
authors.initials: A
authors.lastname: Gupta
authors.forename: Vishaal
authors.initials: V
authors.lastname: Bhambhwani
authors.forename: Gauri
authors.initials: G
authors.lastname: Bhushan
authors.forename: Anisha
authors.initials: A
authors.lastname: Seth
authors.forename: Basudeb
authors.initials: B
authors.lastname: Ghosh
mesh_terms: D057128:Aberrometry; D000293:Adolescent; D002386:Cataract / Q000209:etiology / Q000503:physiopathology; D002648:Child; D015350:Contrast Sensitivity / Q000502:physiology; D057108:Corneal Wavefront Aberration / Q000503:physiopathology*; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D055095:Optics and Photonics; D018918:Phacoemulsification; D011446:Prospective Studies; D019591:Pseudophakia / Q000209:etiology / Q000503:physiopathology*; D014792:Visual Acuity / Q000502:physiology