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A male runner smiles as he holds his Marathon medal.

TCS London Marathon 2025

Join #TeamRetinaUK for the iconic 2025 TCS London Marathon! Soak up the incredible atmosphere as you run from Blackheath to The Mall finish line where you’ll get your very own marathon medal.

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Our Partners

We are proud to work collaboratively with a number of corporate partners to enable our community to live fulfilled lives today as well as supporting the pharmaceutical industry in their mission to develop potential new treatments.

A male runner smiles as he holds his Marathon medal.

TCS London Marathon 2026

Be a part of our 50th anniversary team at the iconic TCS London Marathon 2026! Join #TeamRetinaUK and soak up the incredible atmosphere as you run from Blackheath to The Mall finish line where you’ll get your very own iconic medal.

A series of cogs interlocking on a blue background

Inheritance patterns

Your doctor or genetic counsellor will spend some time asking about other people in your family to try to work out the way in which your particular faulty gene has been passed down through the generations – this is referred to as the inheritance pattern.