With 12+ million products ready to ship, Lens has become one of the largest online retailers of contact lenses. Prices on average run 15% lower than other online vendors, and Lens deals include "Buy More Save More" pricing (discounted rates based on quantity) and the "Refer a Friend" program (store credit for referrals). Account holders receive email reminders when prescriptions run low, as well as Lens coupons and special offers.