A man who suffers from colour blindness has written about his experience of trying contact lenses to correct his vision.
In an article for the Daily Mail, 21-year-old Jolyon Wellington detailed his wearing of ChromaGen contact lenses which work to correct colour blindness.
He had hoped that the contact lenses may help him fulfill his dream of becoming a pilot.
Mr Wellington was given a red contact lens which he said made objects in his sight look "far more vibrant - blue cars in particular".
Without contact lenses, he scored five out of 20 on a test to detect colour blindness, but raised his score to nine with a red contact lens in.
But Mr Wellington was disappointed to find that the Civil Aviation Authority had decided not to accept pilots wearing coloured contact lenses, as these would not help them to see colour better while in flight.
City University recently developed a new eyesight test which may allow colour blind people to become pilots.
Developed through research sponsored by the Civil Aviation Authority and US Federal Administration, the test can find whether a colour blind person can still see well enough to fly safely.
by Alexa Kaczka