Dr Sajjad Ahmad is a Consultant Ophthalmic Surgeon and Lead for Experimental Medicine at the world-renowned Moorfields Eye Hospital in London. His expertise is in corneal and external eye diseases, and cataract and refractive surgery. He holds an Associate Professor position at the Institute of Ophthalmology, University College London. He has a laboratory group with expertise in limbal stem cells and has led early phase clinical trials in limbal stem cell therapies.