Vertical saccadic velocity and force development in superior oblique palsy

Vision Research
S Tian, G Lennerstrand

Abstract

Vertical saccadic movements recorded with electrooculography (EOG) and force development measured by means of a contact lens-strain gauge technique were investigated in 13 patients with a clinical diagnosis of unilateral superior oblique palsy (SOP) and 10 normal subjects. Upward and downward movements from the horizontal level to 5, 10 and 20 deg of deviation with monocular fixation were made in the 20 deg abduction and adduction fields of gaze. Peak velocity (Vp) and the ratio of downward over upward movement (VpD/U) of the paretic eye (PE) and the sound eye (SE) of the patients were compared with the values of the covered, non-fixating eye (CE) and the fixating eye (FE) of the normals respectively. Peak tension (Fp), steady-state tension (Fs) and the ratios of downward over upward movement (Fp D/U, Fs D/U) of PE were compared with the values of CE. Comparisons were done (a) between normals and the whole group of 13 patients, (b) between normals and two subgroups of five patients with acquired and five with congenital SOP, (c) and between the subgroups. Mean Vp for the whole group of SOP showed reduced values from normals in many directions of gaze. However, mean Fp and ratios of Vp D/U and Fp D/U were not different in SOP an...Continue Reading

References

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Citations

Dec 7, 2005·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·G LennerstrandE C Campos
Dec 31, 2005·Journal of Integrative Neuroscience·G Lennerstrand
Sep 1, 2014·Journal of AAPOS : the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus·Derick G HoltSean P Donahue
Oct 20, 2007·Acta Ophthalmologica Scandinavica·G Lennerstrand

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