Serving in the role of medical examiner for the Federal Aviation Administration was a satisfying phase of my medical career. After a decade or more of doing exams for third-class medical certificates ...

Daltonism is a specific type of red-green color vision deficiency, also known as color blindness. People with red-green color vision deficiency may confuse colors that contain red or green elements.

There are three main types of color vision deficiency: red-green, blue-yellow, and complete. Color blindness, or color vision deficiency, affects the way you perceive color and can make it hard to ...