In nature, the only way for animals to achieve perfect vision is to crossbreed with an eagle, usually resulting in eagle-eyed abominations such as snakes with talons and flying pumas. Keeping human senses sharp is a less formidable task, as today’s Groupon proves: for $60, you get $130 toward a complete pair of prescription glasses at EyeHealth Northwest, valid at all locations.

With 22 ophthalmologists, eight optometrists and an extensive collection of stylish specs at 11 locations, EyeHealth Northwest helps the nearsighted and farsighted alike achieve optimal glances with custom frames and affective lenses. Start spotting road signs, school chalkboards, and marriage proposals written on blimps in 20/20 vision behind a pair of nearly unbreakable polycarbonate lenses ($178) or a clear set of high-index 1.67 lenses ($244). Applying a single-vision transition tint will soften the glare of walking outdoors right after clouds have mysteriously departed ($98). EyeHealth Northwest's large selection of frames brighten headlights with comfortable titanium and soft plastics ($99–$475). Or choose from their value line, which offers a complete pair of frames with CR-39 lenses and a factory scratch coat ($99 for single vision; $119 for bifocals).