Like hardboiled detectives, prescription lenses clear up blurry mysteries and frequently end up framed. Focus on the facts with today's Groupon: for $40, you get $250 toward designer frames and lenses at Spectacle Shoppe, with locations in Burnsville, New Brighton, Rogers, St. Paul, and West St. Paul.

Spectacle Shoppe's oft-awarded cache of more than 12,000 designer and vintage frames adds interest to oculars, and lenses ground in the in-house lab sharpen blurred vision. The stock includes 8 Below Zero fashion glasses designed by owner David Ulrich, designer frames from Bvlgari, Mikado, and Ralph Lauren, as well the cat-eye spectacles of vintage frames. The store's helpful face framers have adorned the nose bridges of celebrity clientele including Kenneth Branagh, Bette Midler, J-Lo, and Snuffleupagus. Customers can find bold frames covered in eel or adorned with mink, opt for subtle pairs, or select professionally elegant monocles to sport. Most frames range from $189 to $499, and the most frequently spotted price tag reads $259.

Spectacle Shoppe's in-house lab merges stylishly formed frames with sight-clearing functionality, grinding lenses to each client's needs. Single-vision lenses offer uniform sight calibration ($30–$429), and bifocal ($199–$299), trifocal ($229–$289), and progressive lenses ($259–$650) allow for multiple prescription strengths. Additional add-ons include polarization to reduce glare ($129) and tinting to shield eyes from the sun's sequined cabaret routines ($40).