What does lutein do for your eyes?

What does lutein do for your eyes? Many people think of lutein as "the eye vitamin." They use it to prevent eye diseases including age-related macular degeneration (AMD), cataracts,and retinitis pigmentosa. Some people also use it for preventing colon cancer, breast cancer, type 2 diabetes, and heart disease. Many multivitamins contain lutein.

What does lutein do for your eyes? Many people think of lutein as "the eye vitamin." They use it to prevent 
eye diseases including age-related macular degeneration (AMD), cataracts, 
and retinitis pigmentosa. Some people also use it for preventing colon 
cancer, breast cancer, type 2 diabetes, and heart disease. Many multivitamins contain lutein.

What does lutein do for your eyes?