Frithiof Holmgren

Alarik Frithiof Holmgren (October 22, 1831 – August 14, 1897) was a Swedish physician, physiologist and professor at Upsala University, most noted for his research of color blindness.

He was a vocal opponent of vivisection, and particularly the use of curare to immobilize subjects so they appeared peaceful while enduring great pain.

From 1852 he served as a medial practitioner including during the cholera pandemic in Norrköping and Söderköping.

He joined the faculty of Uppsala University and in 1864, was appointed professor of physiology.

This established the now standard practice of excluded color blind individuals from employment in certain sectors.