In nature, the only way for animals to achieve perfect vision is to crossbreed with an eagle, usually resulting in eagle nightmares such as snakes with talons and flying pumas. Sharpen human senses less formidably with today’s Groupon: for $49, you get $100 worth of prescription or nonprescription sunglasses at MyEyeDr., with 36 locations throughout DC, Maryland, and Virginia.

Dedicated to customer satisfaction and optical health, each of MyEyeDr.'s 36 locations staffs a licensed doctor of optometry to accommodate correction-coveting sets of oglers with a combination of human reasoning and computer precision. Designer sunglasses adorn the shelves at each location, including frames by Nautica ($99) and Ellen Tracy ($99). With the purchase of each pair of tinted reading windows, MyEyeDr. will include a lifetime's worth of glasses cleaning and adjustment at any location. Customers can relieve weary retinas in a pair of sunglasses by BCBG ($99), Kenneth Cole ($99), Ellen Tracy ($99), and Ray Ban ($119+). Order prescription lenses for new shades (starting at $99) to discover that the fine print on the sun actually reads "Store in a cool, dark vacuum and do not stare directly at it."

The $99 starting price for prescription lenses includes single vision, CR39 plastic lenses, UV coating, and colored tinting. This Groupon is not valid toward replacement lenses and may not be used in conjunction with insurance or other discounts. Listed pricing for sunglasses reflects non-prescription prices.