Sohan S Hayreh, professor of ophthalmology at the University of Iowa, was best known for his work on the vascular circulation of the visual system and vascular diseases of the eye and optic nerve. He made profound contributions to the understanding of vascular eye diseases and received many honours.

Aires Barros D'Sa was a pioneering vascular and trauma surgeon in Belfast. He was born in 1939 in Nairobi, Kenya, into a Goan family. His father, Inaçio Francisco Purifcação Saúde D'Sa, was a civil servant. His mother was Maria Eslina Inês Barros. Aires grew up in Kenya and was educated at Duke of G