How Entrepreneurs with Social Vision Secured Venture CapitalVCs help sharpen Warby Parker's focus on the eyeglass industry.

Fashion-forward friends Neil Blumenthal, David Gilboa, Andrew Hunt and Jeffrey Raider aren't your bargain-basement eyewear types. The four University of Pennsylvania Wharton School of business alumni always preferred designer frames and lenses that ran about $500 per pair--a fact they lamented.

"Most glasses are marked up between 10 and 20 times what they cost to manufacture, and that just didn't make any sense to us," Blumenthal says. So they set out to refocus the industry.