Bhubaneswar, May 7 -- Once a topic of science fiction and lore, the idea of restoring eyesight is finally becoming an approachable reality. Today, the idea of building visual prosthesis has become less the subject of science fiction and more the pursuit of numerous and intense scientific researches. According to the World Health Organization, there are at least 2.2 billion visually impaired individuals worldwide. Out of these, about 1 billion are people whose blindness could have been treated or was avoidable. Research on possible solution is underway. Companies like Science and Gensight are currently experimenting with methods to restore vision. Science, a startup company, has claimed of designing a visual prosthesis that could restore v...