Los Angeles (IANS) Scientists in the US have engineered a virus that inserts genes into the eyes as a way of restoring sight in those afflicted by diseases that cause blinding a new study says. Unlike current treatments the new procedure is quick and surgically non-invasive and it delivers normal genes to hard-to-reach cells throughout the entire retina reports Science Daily. Over the last six years several groups have successfully treated people with a rare inherited eye disease by injecting a virus with a normal gene directly into the retina of an eye with a defective gene. Despite the invasive process