A large U.S. health records study suggests that difficulty seeing blood in urine may put color-blind patients at higher risk.

People with color vision deficiency -- commonly known as color blindness -- may have a higher risk of mortality from bladder ...

Hang on to your rods and cones. The NTSB wants the FAA to tighten color vision screening procedures (recommendation A-04-46) for applicants of Class 1 and 2 Medical Certificates in order to prevent ...