Over the past 10 years, efforts in gene therapy, stem cells and “bionic” implants have given at least some sight to people previously sightless, National Geographic reports.
The National Eye Institute is funding eye research and the World Health Organization and the International Agency for the Prevention of Blindness’s Vision 2020 initiative states a goal of “eliminating avoidable blindness by 2020.”
And businessman Sanford Greenberg, who lost his sight to glaucoma while in college, has offered $3 million in gold to whoever contributes most to ending blindness by that date.
Stem cells are showing promise to replace or revive the failing retinal cells that underlie many causes of blindness. And bionic retinas — microchips that replace failed retinal cells — are bringing some sight to people who for years saw nothing.
Read the full story: