Alzheimer's

About 4 million people in the United States suffer from Alzheimer's
Alzheimer's affects 5% of people over 65 and 20% of people over 80.
The average course of the disease from the time it is diagnosed to death is about 6 to 8 years

Age Related Macular Degeneration

Approximately 1.7 million people over the age of 65 suffer from ARMD
As many as 9.2% of people over the age of 40 may suffer from ARMD
Age-related macular degeneration is the leading cause of severe vision loss in older Americans.
In this condition, the central portion of the retina (the macula) deteriorates, and central vision can be lost.