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Images shows a group of three walkers walking along a trail with other walkers in the distance. Green fields and trees line the trail. 'Chiltern 50 Challenge' is written on the top right of the image.

Chiltern 50 Challenge

This โ€˜end of seasonโ€™ 50km looped route covers some of the best of the Chilterns countryside. You can walk, jog, or run along historic trails and over rolling hills. A half distance 25km challenge is also available.

Start your own fundraising

Organising your own fundraising is great fun and a brilliant way to involve your friends, family and local community.

ReNeuron trial FAQs

You may have heard that a cell-based treatment approach (sometimes referred to as a โ€œstem cell treatmentโ€), developed by a company called ReNeuron, is being tested in a clinical trial at Oxford Eye Hospital and other centres in the US and Europe.

Woman in lab coat plating

Medical research

Retina UK has invested more than ยฃ16million into cutting-edge research since the charity was founded in 1976.