<http://schema.org/description>
"Higher levels of physical exercise may have a long-term beneficial impact on low ocular perfusion pressure, a risk factor for glaucoma, British researchers say."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Health_News/2011/10/26/Exercise-may-reduce-risk-of-glaucoma/UPI-50381319607044/>