Written Question·Department for Transport·UIN 121828

Aviation: Colour Vision Deficiency

Tabled: 18 March 2026

Answered: 30 March 2026

Question

Mr Richard Holden

To ask the Secretary of State for Transport, pursuant to the Answer of 9 March 2026 to Question 116584 on Aviation: Colour Vision Deficiency, what independent analysis reported that only the CAD test and anomaloscopes when used correctly have 100% sensiti

Answer

Keir Mather

The analysis in question is a paper from a French research group that was published in a peer reviewed journal in 2018. The reference is: Marechal M, Delbarre M, Tesson J et al. Color vision tests in pilots’ medical assessments. Aerosp Med Hum Perform Aug...

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