Dr Asterios Diafas is an ophthalmologist specialising in ocular oncology, vitreoretinal surgery and cataract surgery. He has trained and worked at leading ophthalmic centres in the United Kingdom and internationally, gaining extensive experience in the diagnosis and management of a wide range of ocular tumours, retinal diseases and macular conditions.
Alongside his clinical practice, Dr Diafas is actively involved in research, education and academic ophthalmology. His particular interests include ocular tumours, retinal diseases, and advances in the imaging, diagnosis and treatment of complex ophthalmic conditions.
Through this website, Dr Diafas aims to provide clear, reliable and accessible information about eye conditions, their symptoms, diagnosis and treatment. It also offers an overview of his clinical interests, professional experience and academic work, helping patients and colleagues better understand his areas of expertise.
A. Professional activity – Experience & Specialisation
He has completed extensive subspecialty training at leading ophthalmology centres in the United Kingdom, gaining significant experience in the diagnosis and management of diseases of the posterior segment of the eye. Specifically, he specialises in the diagnosis and treatment of intraocular tumours, such as uveal melanoma, choroidal metastases and retinoblastoma, as well as benign ocular tumours and conjunctival tumours.
In addition, he is an expert in the diagnosis and surgical management of vitreoretinal diseases, including retinal detachment, macular disorders, diabetic retinopathy and intraocular haemorrhages, as well as in the use of laser techniques and intravitreal injections for retinal diseases. In addition, he has extensive experience in cataract surgery and intraocular lens implantation, including complex cases and intraocular lens exchange.
B. Education & Academic Career
He is a graduate of the Medical School of the Aristotle University of Thessaloniki. He worked as an ophthalmology resident at Xanthi General Hospital and at the 2nd University Ophthalmology Department of Papageorgiou General Hospital in Thessaloniki.
Since 2020 he has held the Certificate of Completion of Specialty Training in Ophthalmology as well as the European Board of Ophthalmology qualification (FEBO).
Since 2021 he has been working in the United Kingdom, where he subspecialised in ocular oncology at Liverpool University Hospital and Moorfields Eye Hospital in London. He also subspecialised in vitreoretinal surgery at Liverpool University Hospital, Cheltenham General Hospital and Moorfields Eye Hospital.
From 2026 he holds a Consultant post in Ocular Oncology at Moorfields Eye Hospital.
He holds two postgraduate degrees, in Medical Research Methodology and Ophthalmic Imaging, and is a PhD candidate in Ocular Oncology at the University of Thessaly, in collaboration with the University of Liverpool.
C. Research – Publications – Distinctions
He maintains an active research and academic profile, participating in multicentre clinical studies, teaching and supervising postgraduate students. He has published numerous scientific papers in high-impact international journals and regularly presents lectures and talks at international conferences.
His CV includes important distinctions and scholarships. He received the “E. Gragoudas” scholarship from the Panhellenic Ophthalmological Society, ranking first in nationwide examinations, which enabled him to attend the Harvard Medical School “Lancaster Course in Ophthalmology” in the United States. He also received a scholarship from the Greek Vitreoretinal Society in 2020 for further training in the United Kingdom, and since 2025 he has been selected for the Euretina Mentorship Programme.
