What is daltonisim?

Answer 1

Daltonism is red-green colorblindness known medically as deuteranopia, so named because of John Dalton's writings on the subject in the late 18th century.

Answer 2

"Daltonism" is an outdated term for color blindness, a condition in which individuals have difficulty distinguishing between certain colors. It is named after John Dalton, a scientist who was one of the first to describe the condition. People with color blindness may have trouble differentiating between red and green hues, the most common form of color blindness.