On finishing the Sydney Eye Hospital training programme, he completed strabismus and paediatric ophthalmology fellowship training at the prestigious Hospital for Sick Children in Toronto, Canada. During this fellowship he was awarded the distinguished John Gaby prize for research.  Craig has been a staff specialist at Westmead children’s Hospital since 1997, a visiting VMO at Sydney Eye Hospital and Sydney Children’s Hospital since 2001. He has been Head of the Strabismus Unit at Sydney Eye Hospital since 2015 and from 2012 -2018 was President of the Australian and New Zealand Strabismus society. From 2022 he has been a member of the Orthoptics industry advisory board.

Craig is currently Honorary Treasurer of the Royal Australian and New Zealand College of Ophthalmology State Branch Committee and Federal Councillor. Among other things he has also been RANZCO NSW state secretary, RANZCO annual conference programme committee member, external examiner to the Hong Kong College of Ophthalmology and Director of training of registrars for the Sydney Eye Hospital programme and paediatric and strabismus section editor for the Journal of the Asia Pacific Academy of Ophthalmology (APAO). He is the supervisor of Fellows at Westmead Children’s Hospital and director of the board at Epping Surgery Centre. Over several years, through Sight for All, he has contributed to setting up a successful teaching programme in Strabismus and Paediatrics in Cambodia.

Craig has authored numerous papers and lectured extensively in Australia and overseas. 

In January 2019 he was awarded a Member of the Order of Australia AM for services to ophthalmology and medicine and in March 2019 awarded the APAO prevention of blindness award in Asia.