1. Corneal response to orthokeratology;Swarbrick;Optom. Vis. Sci.,1998
2. Photorefractive keratectomy: a technique for laser refractive surgery;Munnerlyn;J. Cataract Refract. Surg.,1988
3. Corneal shape changes and variables associated with OK lenses;Mountford,1999
4. Modern Orthokeratology;Rinehart,2000