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) and established the OT Editorial Advisory Board. He has consulted for Johnson & Johnson Vision Care and has trained practitioners and managers 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 led optometry study tours to China, Cuba, South India, North India, South Africa Sri Lanka and Vietnam in association with Jon Baines Tours.