Armour was born on 19 August 1934 in Murree, Pakistan, to Mr. Aziz Ahmed and Edith Ahmed. He graduated as a medical doctor from King Edward Medical College, Lahore in 1956 and migrated to England, where he joined the NHS. He retired as a surgeon from Lister Hospital, Stevenage.
Armour lives in Hitchin, Hertfordshire with his wife Gillian. He has three children: Sara, Jasmin and Steve. His brother, Dr. David S. Ahmed, retired as Vice President of Medical Services, Regina Qu'Appelle Health Region, Canada.
After retiring he developed a lens-free direct ophthalmoscope, manufactured under brand name "Optyse". It can help detect cataracts among other eye pathologies. It is comparatively cheap, which allows for use in the developing world. It has received the "Best Innovation to improve Global Health Care" award by Medical Futures. It was placed 2nd in the Saatchi and Saatchi "World Changing Ideas" global competition in 2006 and won the Edward de Bono Medal for simplicity.
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