The charity day is held each year on 11 September to commemorate those who died in the attack on the World Trade Center in New York.
The award recognises Dr Robert Chappell’s contribution to eye care, and was presented during a ceremony in Hyderabad.
The prestigious António Champalimaud Vision Award recognises groups that work to prevent and alleviate blindness in developing countries.
The Sheikh Zayed Regional Eye Care Centre in The Gambia marked the occasion with an event to celebrate its success providing eye health services.
An author whose brother died in a plane crash in 1961 has written a book to investigate the tragedy, with royalties donated to charities including Sightsavers.
In 2013 a devastating Ebola outbreak decimated Liberia's already fragile healthcare system. Yet during this period, Sightsavers continued to operate.