Parallax-free exophthalmometry: a comprehensive review of the literature on clinical exophthalmometry and the introduction of the first parallax-free exophthalmometer

Stijn W. Genders, Daphne L. Mourits, Mohammad Jasem, Roel J. H. M. Kloos, Peerooz Saeed, Maarten Ph Mourits

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17 Citations (Scopus)

Abstract

To present the first parallax-free exophthalmometer design. Exophthalmometry is an important clinical tool. We provide a historic overview of clinical exophthalmometer designs, and we review current problems encountered in exophthalmometry. We present a new and parallax-free exophthalmometer design that we have evaluated in 49 patients visiting our orbital clinic. The mean age of the patients was 49.8 years and 72% were female. The Pearson interobserver variation was 0.97, and 94% of the Hertel values measured by the two observers were within the limits (1.6 mm) of agreement. This meter appears to be a reliable instrument for exophthalmometry. It is the first instrument that allows for a complete parallax-free measurement
Original languageEnglish
Pages (from-to)23-29
JournalOrbit (Amsterdam, Netherlands)
Volume34
Issue number1
DOIs
Publication statusPublished - 2015

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