Major cause of blindness linked to calcium deposits in the eye

Microscopic spheres of calcium phosphate have been linked to the development of age-related macular degeneration (AMD), a major cause of blindness, by UCL-led research. AMD affects 1 in 5 people over 75, causing their vision to slowly deteriorate, but the cause of the most common form of the disease remains a mystery. The ability to spot the disease early and reliably halt its progression would improve the lives of millions, but this is simply not possible with current knowledge and techniques. The latest research in AMD progression. This not only offers a possible explanation for how AMD develops, but also opens up new ways to diagnose and treat the disease. AMD is characterised by a build-up of mainly protein and fat containing deposits called 'drusen' in the retina, which can prevent essential nutrients from reaching the eye's light-sensitive cells, 'photoreceptors'. Photoreceptors are regularly recycled by cellular processes, creating waste products, but drusen can trap this 'junk' inside the retina, worsening the build-up.