A new device may allow those suffering from a rare kind of blindness to detect light and dark.
It won’t restore sight completely, but allows sight-impaired individuals to detect light and dark.
Retinitis pigmentosa is a genetic eye condition in which cells of the retina, which are responsible for translating light rays into images in the brain, gradually deteriorate.
People with the condition start to lose peripheral vision first, then find it harder to see at night until eventually their central vision is lost as well. According to the national statistics, about one in 4,000 people in the United States are affected by RP.
More at CNN.com.