The Colour Vision Screener test can be downloaded here and is free to use.(For further detail on the CAD test itself scroll below to the 'Medical Applications' tab.) Colour Vision Screener The 'Colour Vision Screener' test can be used to identify those who may go on to benefit from taking the centre's CAD (Colour Assessment and Diagnosis) test, which provides an accurate diagnosis of colour vision loss. The Centre for Applied Vision Research has now made a new test available to screen adults and children for colour vision defiency. To find out more information on the range of vision tests that are available to specific industries and job functions select an option below. There are other Advanced Vision and Optometric Tests (AVOT) developed and validated and offered by the centre to measure the quality of spatial vision, scattered light in the eye and the ability to see rapid flicker and motion perception. However it is only one of several tests designed to assess different aspects of visual performance. The CAD test has now become the ‘gold standard’ for detection of congenital and acquired deficiencies and for establishing the severity of colour vision loss. The Colour Assessment and Diagnosis (CAD) test was then developed further with support from aviation authorities and Transport for London and is the most researched and documented AVOT test. the amount and angular distribution of forward light scatter in the eye) and performance in visual search tasks with measurement of eye movements and visual processing times. The tests were developed primarily to carry out research studies in camouflage, colour perception, rapid flicker and motion sensitivity, spatial vision under daylight and low light illumination, assessment of scattered light in the eye (i.e.
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