David Shannon graduated in 1986 from Southern College of Optometry, Memphis, Tennessee, as a Doctor of Optometry. Between 2010 and 2013 he was Chairman of the AOP (Association of Optometrists). Previously he was AOP Board member responsible for OT (Optometry Today). He has consulted for Johnson & Johnson Vision Care and has trained practitioners across the UK. Until 2014 he worked in the family practice, Shannon and Carton Ltd, in London. David has supervised undergraduate optometry students at City University’s contact lens clinic. David has led many successful optometry study tours, including to China, Cuba, India, South Africa, Sri Lanka, Vietnam, Nepal and Peru, for Jon Baines Tours.