Complog Users include:
- St Thomas’ Hospital, London
- Moorfields Eye Hospital, London
- LV Prasad Eye Institute, India
- Moorfields Eye Hospital, Dubai
- Arthur Steele Refractive Surgery Unit, London
- Newmedica Ltd, London
- The London Clinic Eye Centre, London
- The Cavendish Clinic, London
- The Maidstone Hospital, Kent
- Eastbourne Hospital, Sussex
- The Princess Elizabeth Hospital – States of Guernsey
- Medical Specialist Group, Guernsey
- East Sussex Health Care Trust, UK
- Norfolk and Norwich University Hospital, Norfolk Uk
- Islamia Eye Hospital – Bangladesh
- East Kent Hospitals University Foundation Trust – UK
- Conquest Hospital – Hastings, UK
- Limassol Eye Clinic – Cyprus
- The Burgess Road Surgery – Southampton
- Western Healthcare Trust – Northern Ireland
- Berkeley University – California, USA
- Manipal Institute of Higher Education – Karnataka, India
- Sheffield University – Sheffield, UK