Children who wear glasses endure wisecracks including “four-eyes” and “Einstein,” while those with perfect vision bask in compliments such as “two-eyes” and “Oppenheimer.” Sharpen your sight with today's Groupon: for $2,950, you get a full LASIK treatment for both eyes at Boston Laser in Brookline (a $5,900 value).

Boston Laser’s staff walk the cutting edge of focused light technologies to treat an array of ocular issues. After a consultation determines the viability of the treatment, a WaveScan maps out the fine topography of each eye so that the treatment can take every angle, curve, corneal shape, and corneal village into account. The laser device then incorporates the precision data produced by the scan into the corrective procedure, along with ongoing readings that adjust for the rotation of the eyes. The blade-free treatment itself only takes a few minutes—the exact time it takes to iron out face crinkles after squinting—and after one year, 96% of queried customers have reported being able to see well enough without glasses to perform most tasks, and 100% of customers reported at least 20/40 vision, allowing them to drive without glasses.