title: Effect of exophthalmometer design on its accuracy.
abstract: OBJECTIVE
  To investigate the effect of the design of different exophthalmometers on their measurement accuracy.
  
  
  METHODS
  Eight different exophthalmometers were tested with a specially developed calibrator by experienced orbital surgeons.
  
  
  RESULTS
  Exophthalmometers with one mirror and a straight footplate were found to be more accurate than others. One-mirror exophthalmometers were less accurate when assessing low (< or =12 mm) and high (> or =23 mm) exophthalmometric values.
  
  
  CONCLUSIONS
  The design of an exophthalmometer affects its accuracy.
authors.affiliation: Orbital Center, Department of Ophthalmology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. vardizer@netvision.net.il
authors.forename: Yoav
authors.initials: Y
authors.lastname: Vardizer
authors.forename: Tos T J M
authors.initials: TT
authors.lastname: Berendschot
authors.forename: Maarten P
authors.initials: MP
authors.lastname: Mourits
mesh_terms: D003941:Diagnostic Techniques, Ophthalmological / Q000295:instrumentation*; D004867:Equipment Design; D005094:Exophthalmos / Q000175:diagnosis*; D006801:Humans; D015203:Reproducibility of Results