Orthokeratology (ortho-K), or corneal refractive therapy (CRT), involves wearing contact lenses only while you sleep. So when you wake up, you remove the lenses from your eyes, and you benefit from clear vision all day long! Ortho-K is ideal for people of all ages who would prefer to be free of glasses or contacts during their daily activities. It's most popular with active people who enjoy wearing non-prescription sunglasses or who play watersports.

Ortho-K is completely safe. Unlike refractive laser surgery, there are no age restrictions, and the effects are completely reversible. Children and teens can be great candidates, and when you discontinue wearing the lenses overnight, your vision returns to its original state.