NHS.UK: "Procedure to restore sight in dogs gives hope for future blindness cure," The Independent reports. Researchers have restored some modest degree of light sensitivity (though not full vision) in animals who have a similar condition to retinitis pigmentosa.
Retinitis pigmentosa is an umbrella term for a group of human inherited eye conditions, affecting around 1 in 4,000 people, in which the normal light-sensing cells contained in the retina become damaged or die.