Abraham of Lerida was a Jewish physician, surgeon and astrologer. On September 12, 1468, he couched a cataract in the right eye of King John II of Aragon, and afterward was equally successful with the left eye.
This article incorporates text from a publication now in the public domain: Kayserling, Meyer (1901). "Abraham of Lerida". In Singer, Isidore; et al. (eds.). The Jewish Encyclopedia. Vol. 1. New York: Funk & Wagnalls. p. 113.