Effect of exophthalmometer design on its accuracy.
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.
Vardizer
Yoav
Y
Orbital Center, Department of Ophthalmology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. vardizer@netvision.net.il
Berendschot
Tos T J M
TT
Mourits
Maarten P
MP
D003941:Diagnostic Techniques, Ophthalmological / Q000295:instrumentation*; D004867:Equipment Design; D005094:Exophthalmos / Q000175:diagnosis*; D006801:Humans; D015203:Reproducibility of Results