Bioscience:Secrets of the Sequence（44）
Today we're going to start by talking about vision — one of the most powerful ways we experience life. Now some genetic sleuths hope they can stop some people from going blind. Even if you had 20/20 vision when you were young， chances are your eye sight is getting worse as you get older. For most of us， this just means you'll turn on a few more lights around the house or get reading glasses. But for others， much more serious eye problems can develop， like a condition called macular degeneration.
- Added：2006
- Country：America
- Duration：30
- Time of update：2011/8/17 15:44:52