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Ultra Challenge

Ultra Challenges 2025

With 18 events to choose from in 2025, these hugely popular events are back for another year! Whether you run, jog or walk, you can support Retina UK's vital work whilst achieving an amazing personal goal. Join #TeamRetinaUK today!

Ultra Challenge

Ultra Challenges 2025

With 18 events to choose from in 2025, these hugely popular events are back for another year! Whether you run, jog or walk, you can support Retina UK's vital work whilst achieving an amazing personal goal. Join #TeamRetinaUK today!

A DNA spiral with a piece removed being held by tweezers

Genetics and gene therapy

When we talk about gene therapy we are usually referring to use of a harmless virus, called a vector, to deliver a normal copy of a defective gene into the cells of the eye.