title: Clinical comparison of 6 aberrometers. Part 1: Technical specifications.
abstract: OBJECTIVE
  To provide a detailed assessment of the techniques, technical features, and practical use of 6 aberrometers made available to our institution from September 2002 to January 2004.
  
  
  METHODS
  Department of Ophthalmology, University Hospital Antwerp, Antwerp, Belgium.
  
  
  METHODS
  A number of technical and practical parameters are listed for the Visual Function Analyzer (Tracey), the OPD-scan (ARK 10000; Nidek), the Zywave (Bausch & Lomb), the WASCA (Carl Zeiss Meditec), the MultiSpot Hartmann-Shack device, and the Allegretto Wave Analyzer including working principles, data acquisition, aberrometer alignment, wavefront calculation, and data analysis. Operator and patient comfort as well as practical advantages and disadvantages are discussed.
  
  
  CONCLUSIONS
  All devices met at least half the following parameters: alignment, correction for source wavelength, data averaging, measurement quality check, and inhibition of accommodation.
authors.affiliation: Vision Lab, University of Antwerp, Antwerp, Belgium. jos.rozema@ua.ac.be
authors.forename: Jos J
authors.initials: JJ
authors.lastname: Rozema
authors.forename: Dirk E M
authors.initials: DE
authors.lastname: Van Dyck
authors.forename: Marie-José
authors.initials: MJ
authors.lastname: Tassignon
mesh_terms: D057128:Aberrometry / Q000295:instrumentation* / Q000592:standards; D003315:Cornea / Q000473:pathology; D057108:Corneal Wavefront Aberration / Q000175:diagnosis*; D006801:Humans; D012029:Refraction, Ocular / Q000502:physiology; D015203:Reproducibility of Results; D042261:Retinoscopes