Retinal implants and restoring sight: a measured look

Retinal implants convert light into electrical signals that stimulate the surviving nerve cells in a damaged retina. Photovoltaic sub-retinal chips have shown some patients regaining the ability to read large letters after years of central vision loss.

What is restored

Form vision, contrast and the ability to read enlarged text in trained users — not natural sight.

Who is eligible

Currently a small group with specific advanced conditions and a healthy inner retina, in specialist trial centres.

The wider lesson

Preventable and treatable sight loss remains far more common than untreatable loss. Cataract, glaucoma and diabetic eye disease account for most of it, and all three respond to timely care.

What this means if you are considering surgery in the UK

New technology only helps when it is matched to the right eye. Ms Tahmina Pearsall FRCOphth is a UK consultant ophthalmic surgeon on the GMC specialist register with more than 40,000 eye procedures performed, and she assesses every patient personally before recommending anything. If a full eye health assessment is relevant to you, a consultation will tell you whether it changes your options — or whether a simpler, better-established treatment gives you a safer result.

Book a consultation with Ms Pearsall

Consultations are available at clinics across the UK, including London Harley Street, Birmingham, Manchester, Leeds, Edinburgh, Cardiff, Reading and Southampton. You can book a consultation, arrange a free 15-minute call, see treatment prices, read verified patient reviews or find your nearest clinic.