This article describes the first U.S. color vision test, which was developed during World War II through the initiative and pioneering dedication of a remarkable man -- Dr. Israel Dvorine. We ...

A color vision test, also known as the Ishihara color test, measures your ability to tell the difference among colors.

Normal color vision allows pilots to adequately interpret bi-color navigation lights, airway markers, aviation charts and displays, aircraft signaling lights, and other flight-related color coding.

This article describes the first U.S. color vision test, which was developed during World War II through the initiative and pioneering dedication of a remarkable man -- Dr. Israel Dvorine. We ...