title: Changes of ocular aberration with accommodation.
abstract: OBJECTIVE
  To study the effect of accommodation on ocular aberrations.
  
  
  METHODS
  Observational case series.
  
  
  METHODS
  The ocular aberrations in 33 eyes of 33 young adults were measured with a Hartmann-Shack wavefront aberrometer before and during 3 diopters of accommodation.
  
  
  RESULTS
  The root mean square values of wavefront error did not change for a 4-mm and a 6-mm zone; however, spherical aberration changed significantly toward negativity for both the 4-mm zone (P <.001) and 6-mm zone (P =.022).
  
  
  CONCLUSIONS
  During accommodation, the significant change in spherical aberration occurs without a change of image quality. Therefore, for customized aberration, it may not be advantageous to eliminate the physiologic spherical aberration for far vision.
authors.affiliation: Department of Visual Science, Osaka University Graduate School of Medicine, Suita-shi, Osaka, Japan.
authors.forename: Sayuri
authors.initials: S
authors.lastname: Ninomiya
authors.forename: Takashi
authors.initials: T
authors.lastname: Fujikado
authors.forename: Teruhito
authors.initials: T
authors.lastname: Kuroda
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Maeda
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Tano
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Oshika
authors.forename: Yoko
authors.initials: Y
authors.lastname: Hirohara
authors.forename: Toshifumi
authors.initials: T
authors.lastname: Mihashi
mesh_terms: D000065:Accommodation, Ocular / Q000502:physiology*; D000328:Adult; D005260:Female; D006801:Humans; D007908:Lens, Crystalline / Q000502:physiology; D008297:Male; D009216:Myopia / Q000503:physiopathology*