Over 12 years ago, the founders of Zenni Optical learned prescription glasses were highly overpriced. By 2003, they had a factory and a website which was ready to launch offering $19 glasses. If their prices were not low enough, you can find authentic Zenni Optical coupons posted daily on their website. By cutting out the middleman, Zenni Optical deals are their extremely low prices, as well as the ability to tint your lenses and $6.95 prescription glasses.