Allvar Gullstrand (
1862-
1930),
Swedish ophthalmologist. He was professor (1894-1927) successively of
eye therapy and of optics at the
University of Uppsala. He applied the methods of
physical mathematics to the study of optical images and of the refraction of light in the eye. For this
work he received the 1911
Nobel Prize in Physiology or Medicine. He is noted also for his
research on
astigmatism and for improving the ophthalmoscope and corrective lenses for use after removal of a cataract from the eye.
