1. Corneal molding: the easy way;Wlodyga;Contact Lens Spectrum,1989
2. Orthokeratology—a therapeutic approach to contact lens procedures;Grant;Contacto,1970
3. Orthokeratology, part 1: historical perspective;Coon;J Am Optom Assoc,1982
4. A new approach to orthokeratology;Harris;Contact Lens Spectrum,1992
5. Polycon II vs OK-3 lenses in the acute reduction of myopia;Riley;Opt Vis Sci,1992