Gene Therapy Helps Blind Children See

A single **injection** of **DNA** into the **eyes** of four children born with a **blindness-causing** disease has given them enough **vision** to walk without help. The study, published today, confirms that if patients with this disease are given **gene therapy** early in life, the results can be dramatic. Several **clinical trials** in the United States and Europe have been using gene therapy to treat a disease called **Leber's congenital amaurosis** (LCA), which affects about 3000 people in the United States. "ScienceNOW":[ http://sciencenow.sciencemag.org/cgi/content/full/2009/1024/1?rss=1]

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