Head shake suppression tester

Abstract

The invention discloses a head shake suppression tester, which includes an eye patch body, an eye movement camera system, a light source and three fixation objects. The eye movement camera system is used to collect a user's eyeball image, and the light source provides illumination for the eyeball. The three fixation objects are respectively arranged on the user's bilateral horizontal semicircularcanal plane, left anterior / right posterior semicircular canal plane (LARP), and right anterior / left posterior semicircular canal plane (LARP). The three fixation objects are relatively fixed to the user's head for a head shake suppression test. The eye movement camera system, the light source and the fixation objects are installed on the same side of the eye patch body for collecting eye movementimages of users. Three pairs of head shake suppression tests on different semicircular canal panels can be simultaneously realized, user head movement position is recorded in real time, and eye movement images of users are collected.

Description

technical field [0001] The invention relates to the technical field of image acquisition for short-distance testing of eyeball movement information, in particular to a head shake suppression tester. Background technique [0002] The vestibule is an important system responsible for maintaining the balance of the human body, mainly composed of the peripheral vestibule and the central vestibule. The peripheral vestibule includes three pairs of semicircular canals and otolithic organs. Once any of the three pairs of semicircular canals in the human body is dysfunctional, it will lead to balance dysfunction, and then produce symptoms such as vertigo. Quantitative and qualitative testing of semicircular canal dysfunction is an important basis for doctors in departments related to vertigo diseases such as otolaryngology and neurology to give patients a final diagnosis of the disease. [0003] According to the frequency characteristics of the semicircular canal function, the curren...

AI Technical Summary

Problems solved by technology

This technical solution is mainly used for nystagmus acquisition in ordinary vestibular function tests such as optokinetic tests and saccade tests; when it is applied to head shake suppression tests (suppression head impulse, SHIMP), the technical limitation of the projection system can only examine a pair of horizontal semicircular canals , failed to achieve the head shake inhibition test of three pairs of semicircular canals in different planes

Images