title: In vivo longitudinal chromatic aberration of pseudophakic eyes.
abstract: OBJECTIVE
  To present the results of longitudinal chromatic aberration measurements on two groups of pseudophakic eyes in comparison to healthy eyes.
  
  
  METHODS
  The longitudinal chromatic aberration of the eye, defined as chromatic difference of refraction with disabled accommodation, was measured with the use of a visual refractometer with a custom-designed target illuminator consisting of a narrow-band RGB diode (blue λb = 470 ± 15 nm; green λg = 525 ± 18 nm; red λr = 660 ± 10 nm). The measurements were performed on nine eyes implanted with AcrySof IQ SN60WF, 14 eyes implanted with AcrySof SA60AT, and 10 phakic eyes under cycloplegia.
  
  
  RESULTS
  The mean values of the longitudinal chromatic aberration between 470 and 660 nm for the control group was 1.12 ± 0.14 D. For SA60AT group, it was 1.45 ± 0.42 D whereas for SN60WF it was 1.17 ± 0.52 D. The statistical test showed significant difference between SA60AT and the control group (p << 0.05) and no significant difference between SN60WF and the control groups (p = 0.64).
  
  
  CONCLUSIONS
  The study showed that the longitudinal chromatic aberration in vivo can be easily and reliably estimated with an adapted visual refractometer. The two groups of pseudophakic eyes measured in this study showed different values of chromatic aberration. Its magnitude for SA60AT group was significantly larger than for the control group whereas for SN60WF the difference was not significant. The optical material used for intraocular lens design may have significant influence on the magnitude of the chromatic aberration of the pseudophakic eye, and therefore on its optical and visual performance in polychromatic light.
authors.affiliation: *PhD †MSc ‡DScProf §MD, PhD Institute of Physics (DS, AJ, MZ), Wroclaw University of Technology, Wroclaw, Poland; and Department and Clinic of Ophthalmology (AH-B, AT-K), Wroclaw Medical University, Wroclaw, Poland.
authors.forename: Damian
authors.initials: D
authors.lastname: Siedlecki
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Jóźwik
authors.forename: Marek
authors.initials: M
authors.lastname: Zając
authors.forename: Aneta
authors.initials: A
authors.lastname: Hill-Bator
authors.forename: Anna
authors.initials: A
authors.lastname: Turno-Kręcicka
mesh_terms: D000368:Aged; D003116:Color; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular / Q000009:adverse effects*; D008027:Light; D055095:Optics and Photonics; D019591:Pseudophakia / Q000503:physiopathology*; D012029:Refraction, Ocular / Q000502:physiology; D012030:Refractive Errors / Q000209:etiology* / Q000503:physiopathology