Chronic pain affects a large percentage of the population and must be taken seriously. In addition to the pain itself, chronic pain can lead to a number of other conditions, including weight gain, insomnia, anxiety, and depression.

Age-related macular degeneration (AMD) is the number one cause of progressive vision loss and blindness in developed countries. Of Americans over age 65, at least 10% have some loss of vision due to AMD and as many as 30% of Americans over the age of 75 are affected.