Together with husband Fred Hollows, she helped to improve the lives of Australia's aboriginals.
She studied disorders of the eye and associated vision problems.
She was declared one of Australia's 100 Living Treasures for her work in treating eye disorders of indigenous Australians.
She met her husband, Fred Hollows, during her training as a doctor.
Actor Russel Crowe is another one of Australia's 100 Living Treasures.