George Wald,90, a biologist who shared a 1967 Nobel Prize in Medicine or Physiology with two other scientists for his research on how the eye passes images to the brain, died Saturday at his home in Cambridge, Mass.
He carried out significant research about the way vitamin A affects vision and about the roles of various cells in the perception of colors and black-and-white vision.
He was also an outspoken opponent of U.S. involvement in Vietnam. In 1969 at the Massachusetts Institute of Technology, he gave a widely cited speech criticizing the Vietnam War and the arms race.
Pub Date: 4/14/97