A tooth-enamel protein is found in eyes with a common form of macular degeneration

The finding could point to a new target in treating the ‘dry’ form of the disorder

hydroxyapatite and amelotin deposits

In an eye with dry age-related macular degeneration, researchers found clumps of hydroxyapatite (pink), a type of mineralized calcium found in tooth enamel, and a protein called amelotin (green) that appears to be involved in producing the deposits.

Dinusha Rajapakse/NEI

Deposits of a mineral found in tooth enamel at the back of the eye could be hastening the progression of age-related macular degeneration, the leading cause of deteriorating eyesight in people over 50.