who discovered color blindness

Color blindness was first scientifically described by the English chemist and physicist John Dalton in the 1790s, so he is usually credited as the discoverer of color blindness.

Who was John Dalton?

• John Dalton (1766–1844) was a British chemist and physicist best known for developing modern atomic theory.

• He also had color blindness himself, which led him to study the condition in detail and report on it scientifically.

How he “discovered” color blindness

• In 1794, Dalton presented a paper titled Extraordinary Facts Relating to the Vision of Colours , giving the first scientific account of what is now called color blindness.

• Because of this pioneering work, color blindness is still sometimes called “Daltonism” in his honor.

A quick historical note

• People with color vision differences certainly existed long before Dalton, but he was the first to systematically document and analyze the condition in a scientific way.

• Later researchers refined the understanding of different types of color blindness, but Dalton’s early work laid the foundation for modern study of color vision deficiency.

TL;DR: When people ask “who discovered color blindness,” the accepted answer is John Dalton, whose late-18th-century studies made him the landmark figure associated with its discovery.

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