How safe are OrthoK vision improvement contact lenses? How do they compare to conventional contact lenses?
Very safe. Compared to conventional daily wear contact lenses which are worn 12-16 hours per day or extended wear contacts which are worn 24 hours per day, OrthoK lenses are worn only at night (8 hours). This is not to say that conventional or OrthoK contact lenses are without risk. The greatest risk is infection, which, is comparatively rare and is usually prevented by adhering to lens care instructions. One of the great advantages of OrthoK is that it is fully reversible. You can simply stop wearing the lenses if you choose to.
