Sleep shaping orthokeratology, or ortho-k, is a comfortable glasses-free way of correcting vision. Through a special retainer contact lens like device worn overnight, patients awake with better vision. And best of all, it slows the progression of myopia. What could be better than slowly improving vision by gently reshaping the eye while your child is in dreamland? The next day, they wake up, remove the retainers, and go about their day. Sleep shaping lenses have been worn by hundreds of children in myopia management programs without any negative effects, and have become a preferred method for parents and children to slow the progression of their myopia.