Without clarity of vision, mankind would be unable to distinguish friend from foe, making it nearly impossible to organize the annual company joust. Aim your lance at the right coworker with today’s Groupon: for $50, you get $175 toward prescription eyewear at Dr. Tavel Family Eye Care, which has 20 locations throughout Indiana.

With a team of talented opticians, Dr. Tavel provides sight-seeking shoppers with stylish, customizable visual aids. Those who prefer glasses can choose from various lens types, which range from standard plastic models to progressive lenses with upgrade options such as tinting and antireflective coating to prevent passersby from fixing their hair in your face. Housing the assorted lenses are a number of fashionable frames from top designers such as Fendi, Baby Phat, and Randy Jackson. After blindly feeling their way into the shop, customers can boldly exit wearing a new set of basic frames with single vision CR-39 plastic lenses ($99.98) or a stylish pair of Lulu Guinness frames with antireflective polycarbonate lenses ($409.93). Dr. Tavel also provides prescription sunglasses, including stylish Fendi frames with polarized high-index lenses ($488.98), to facilitate driving, golfing, and staring at the sun.