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. Scientists are testing artificial retinas that they hope can restore partial sight to people who've lost their vision to the most common causes of blindness. http://www.physorg.com/news149841853.html Technology Tue, 30 Dec 2008 06:44:13 EST news149841853