9. 4Sight Sunglasses
4Sight was started when its founder travelled to impoverished countries and realized that no one was wearing corrective eyewear because they were unable to afford it. He then found out that 1.3 billion people in the world don’t have the eye care they need to see properly. To eradicate the problem, he launched 4Sight, a sunglasses company that provides a new pair of corrective glasses to a person in need every time they sell a pair of shades. They partner with non-profits Unite for Sight and Feed the Children to deliver eye care and glasses throughout the world.