Dr John Barry, Honorary Lecturer at UCL Division of Psychology and Language Sciences, has developed the first ever scale to measure the impact of colour blindness on quality of life.

Working in collaboration with the University of Birmingham Academic Unit of Ophthalmology, Dr Barry conducted a survey of 419 people with congenital colour

Like 8% of men and 0.5% of women, I am colour blind. Being colour blind has a significant impact on Quality of Life (Barry et al, 2017), creating problems in everyday activities such as understanding coloured graphs (in lectures and textbooks) and maps (e.g. the London Underground map).