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 mention ...

A color vision test, also known as the Ishihara color test, measures your ability to tell the difference among colors. If you don’t pass this test, you may have poor color vision, or your doctor may ...

Our ability to see with color vision depends on the presence and function of light-sensing pigments in the cones of our eyes. Color blindness, or color vision deficiency, happens when one or more of ...

This change marks an important step forward in ensuring aviation safety and reflects the FAA’s commitment to adapting to new challenges posed by technological advances in the aviation industry.

Impaired vision and blindness are common. About 3.4 million people in the US are blind or visually impaired. Vision is usually measured by visual acuity charts, and normal vision is expressed as 20/20 ...

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 mention ...