Duction ranges in normal probands and patients with Graves‘ ophthalmopathy, determined using the Goldmann perimeter.

Autor: Gerling, Jürgen, Lieb, Bettina, Kommerell, Guntram
Zdroj: International Ophthalmology; May1997, Vol. 21 Issue 4, p213-221, 9p
Abstrakt: Background: We examined whether the Goldmann perimeter issuitable for measuring the range of monocular ductions,especially in the follow-up of patients with Graves‘ophthalmopathy. Methods: Using the Goldmann perimeter, the range ofmonocular ductions was determined in one eye of 100 normalprobands (aged between 21 and 70 years) and of 36 patients (agedbetween 29 and 66 years) with a motility disturbance due toGraves‘ ophthalmopathy. Subjects were asked to follow target I/4ewhich was slowly moved by the examiner in the vertical and thehorizontal meridian. The end-point of the pursuit movementobserved by the examiner was taken as the duction limit. Subjectswere measured twice, in half of the cases by the same, in theother half by two different examiners. Results: In the 100 normal probands, the mean ranges of ductions were:elevation 37.6°, depression 58.0°, adduction51.6°, abduction 48.7°. There was a slightage-related decline. The intraobserver and interobserver meancoefficients of variation ranged between 1.5% and 3.8%. In the36 patients with Graves‘ ophthalmopathy the coefficients werebetween 0.7% and 2.3%. In both the normal probands and theGraves‘ ophthalmopathy patients, the coefficients were smallerfor the total vertical and horizontal duction ranges than foradduction, abduction, elevation and depression alone. Conclusions: Measurements of the range of monocular ductionswith the Goldmann perimeter are highly reproducible and appearto be suitable for follow-up studies in patients with Graves‘ophthalmopathy. [ABSTRACT FROM AUTHOR]
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