Researchers from Stanford University looked at the survival rates of cancer patients who have colour vision deficiency (colour blindness) and found that people with the condition faced an increased risk of dying after a bladder cancer diagnosis.

In an analysis of health records, they discovered that people with bladder cancer who are also colourblind have a 52% higher mortality rate over 20 years than people with bladder cancer and normal vision.

“I’m hopeful that this study raises some awareness, not only for patients with colorblindness, but for our colleagues who see these patients,” said Ehsan Rahimy, MD, adjunct........

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