Hubble Contacts was founded by Ben Cogan and Jesse Horowitz. Their company seeks to produce and sell affordable, high quality contact lenses. They found their problem when trying to buy lenses throughout the U.S. and Canada, finding that the enterprises were over charging for contact lenses. So, in order to run the company they received 7.2mil dollars in funding and now provide contact lenses at less than a dollar a day, because they do not want people to choose their wallet over their health. I think this startup is very well thought out and executed, they found need and a problem and came up with an excellent solution.

https://www.hubblecontacts.com/