Mr Fenton was awarded a scholarship to study medicine at the Royal College of Surgeons in Dublin where he graduated in 1989. He trained at the Royal Victoria Eye and Ear Hospital in Dublin initially, before doing his advanced training at the New York State University, in Brooklyn, New York where he became US Board Certified in ophthalmic surgery in 1998. He then did a fellowship in vitreo-retinal surgery at Louisiana State University, New Orleans before returning to Ireland as a Consultant Ophthalmologist at the Bons Secours Hospital, Tralee.
Mr Fenton has extensive experience in cataract, retinal and refractive surgery. He has also worked as a Consultant Ophthalmologist in the NHS. Whilst in the UK he performed over 1000 refractive procedures at one of the busiest refractive surgery clinics.
He has published research papers in retinal surgery and is actively involved in refractive surgery research and training at The Leeson Eye Institute, Dublin