questionText: To ask the Secretary of State for Transport, if she will review the evidential basis for the Colour Assessment Diagnosis test.
answerText: The UK Civil Aviation Authority (CAA) keeps the evidential basis for colour vision testing under regular review. The Colour Assessment and Diagnosis (CAD) test, developed with City University London, is currently the only advanced colour vision test accep...
heading: Colour Vision Deficiency: Medical Examinations