Early into the millennium, science fiction movies used to show us a very cool scenario where a person comes home and starts talking to their computer, and everything would get sorted out on its own. Modern technological advances have rendered this fascinating scenario very realistic, and hence, made that science fiction movie scenes way less cool.
There is 180 million blind and visually challenged in the world. This number grows each year. By the projections of specialists, there will be 275 millions of people having severe problems with vision like cataracts or glaucoma by the year 2020 on earth