All of Warby Parker’s glasses, for example, come standard with impact-resistant polycarbonate lenses. The company doesn’t allow customers to measure the distance between their pupils themselves — an important measurement for making accurate glasses. Instead, that measurement must come from an eye doctor, be taken in one of their physical stores or be measured by a staffer using a photo of the customer submitted online. Though Warby Parker is known for selling glasses online, it also has more than 80 bricks-and-mortar stores, including three in Chicago and one in Oak Brook.