Imagine being able to correct your refractive error while you sleep.  Orthokeratology or Ortho-K is a technology that utilizes a special contact lens like device that gently reshapes your cornea while you sleep. During the day you wear no glasses or contact lenses. 

     Much like LASIK, ortho-k reshapes the cornea, but the effects are reversible so you can go to LASIK or return to glasses or contact lenses any time you wish.