Warby Parker in IPO filing reveals rising sales—but also widening losses

Eyeglass brand Warby Parker has lost money or broken even over each of the past three fiscal years — and warned it may face headwinds as it tries to turn a profit as a public company, according to documents filed Tuesday with securities regulators.

The retailer, which is best known for selling lower-priced, fashion-forward prescription glasses, is preparing to debut on Wall Street. It said in January it had confidentially filed for a stock market listing in the U.S.

With its initial public offering, Warby Parker is expected to join a growing list of consumer-facing brands that will be trading…