Telegraph

Fifteen years ago, I began to lose my central visual field, as a result of damage caused to my optic nerves during the early stages of multiple sclerosis.

This impairment, which I share with the 1.5 million people in the UK who have macular disease, including age-related macular degeneration, is a cruel robbery. Although basic navigational sight often remains intact, it can make it impossible to recognise the face of a loved one from a few feet away, or read the text in a book.

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