Marcus Posner

Mr Marcus Posner is a Consultant Ophthalmologist and Ophthalmic Surgeon with wide-ranging expertise in both adult and paediatric eye conditions. He provides comprehensive care across the full spectrum of ophthalmology and is particularly recognised for his skill in assessing and managing patients with learning difficulties, including dyslexia and autism, ensuring consultations are supportive, clear and accessible.

Mr Posner’s paediatric practice includes the diagnosis and treatment of childhood squint, amblyopia (lazy eye), refractive errors requiring glasses, and a broad range of developmental and congenital eye conditions. In adults, his work includes cataract surgery and lens replacement, adult squint surgery, and the management of complex neuro-visual disorders such as optic neuritis, visual problems related to brain tumours, and stroke. He also regularly treats common ophthalmic conditions including glaucoma, uveitis and macular degeneration.

His experience as a consultant in one of Europe’s busiest eye emergency units means he remains at the forefront of current ophthalmic practice and surgical techniques. Alongside his clinical work, Mr Posner is involved in education and training. He is a surgical trainer and serves as Regional Undergraduate Education Lead for the Royal College of Ophthalmologists, playing an active role in shaping both clinical and surgical training.