When used for good, lasers can correct vision, but when used for evil, they can undermine superheroes during important PowerPoint presentations. Fight the villainy of poor eyesight with this Groupon.

$2,400 for Complete LASIK Surgery ($5,000 Value)

Ideal for the holidays, the procedure can sharpen vision blurred by nearsightedness, farsightedness, or astigmatism, diminishing patients’ dependence on glasses or contacts. Vision usually improves as early as the day after surgery. To begin, the doctor creates a corneal flap with a microkeratome, and then uses the laser to vaporize the corneal tissue under this flap, increasing or reducing the cornea’s curvature depending on need. This modifies the way the light enters the eye, clearing up vision. The doctor folds the flap back over the cornea, and it begins healing without stitches. Patients remain awake throughout the surgery, which only lasts approximately 15 minutes. This Groupon also includes a pre-op consultation and examination, as well as post-op checkups after one day, one week, one month, and three months.