Don is a Non-Executive Director of the Private Patients Forum which was set up to offer a resource for those using or thinking of using private healthcare.

With a background in marketing and general management, he now runs a consultancy primarily facilitating projects between academics, clinicians and industry. He has worked in the vision health sector and has been chairman or president of a number of bodies including the European Association of contact lens manufacturers (Euromcontact) and the Optical Confederation. He is a Past Master of the Worshipful Company of Spectacle Makers. Don directs a small cancer charity and is chairman of Retina UK. He was an active member of the Reserve forces since university, a Squadron Honorary Colonel for 12 years and is now President of the Middlesex Yeomanry Association.