http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Elevated levels of the enzyme arginase contribute to vascular eye damage and Medical College of Georgia researchers say therapies to normalize its levels could halt progression of potentially blinding diseases such as diabetic retinopathy. http://www.physorg.com/news169811215.html Medicine & Health Tue, 18 Aug 2009 11:00:03 EST news169811215 A spreading pandemic of myopia among the world`s urban children may be avoided if children spend at least two to three hours each day outdoors. http://www.physorg.com/news150487968.html Medicine & Health Tue, 06 Jan 2009 18:12:48 EST news150487968