DEVICE FOR MEASURING THE VESTIBULO-OCULAR REFLEX FUNCTION

摘要

A device for measuring errors in compensatory eye movements during voluntary head movements by a subject (10) while continuing to observe a visual display in the subject's field of view comprises an LED display means (35) for producing a cyclically varying visual display, an infra-red sensor (14) for measuring said voluntary head movements which are in phase with the cylcic variations in the visual display, and an adjustable calibrated plate indication means (37) operable by the subject to indicate the relationship between the true variations in the visual display and the apparent variations as observed by the subject during said voluntary head movements. Embodiments for measuring other types of vestibulo-ocular reflex function and alternative forms of display, sensor and indication means are also described.