DEVIC AND METHOD FOR INVESTIGATING CHANGES IN THE EYE

摘要

A mask (10) has a lightweight, robust, plastics or metal frame or body (12) on which other components are supported. The body (12) includes straps or arms (14) to allow the mask to be temporarily attached to the user's head and is designed to provide a light omitting cover for the user's eyes. A suitable light source such as an infrared light source (20) is provided to illuminate the user's eyes (22). A pair of lenses (30) is provided to focus images of the user's eyes onto a pair of image sensors (40). There is also described a method of diagnosing various disorders by investigating changes in the eye using the mask (10). The portable device (10) can be used for the investigation of nystagmus or more generally in oculography, and for the investigation of other changes in the eye.