A blood test is set to save the sight of older people by detecting a common eye disease before symptoms even start.
For the five million people across the world with age-related macular degeneration (AMD), the first sign is often early sight loss.
By the time they notice dark spots in their vision or words which disappear from the page when reading, a lot of the damage has already been done.
However ophthalmologists say there is now a blood test for the disease – the leading cause of blindness in British people aged 50 and over.
This could save people’s sight by picking it up before symptoms strike, allowing them to get vital injections earlier. These injections slow down deteriorating eyesight in people with the ‘wet’ form of AMD by blocking the overgrowth of leaky blood vessels in the eye.