Scientists have used gene therapy to reverse one of the most common causes of blindness.

A single gene injected into the back of the eye restores vision, by fixing a problem which stops the retina detecting light.

Read more: http://www.dailymail.co.uk/health/article-4941832/Single-gene-injected-eye-reverses-type-blindness.html#ixzz4uRXc7fvi