title: Orthokeratology. II. A risky and unpredictable 'treatment' for a benign condition.
mesh_terms: D001251:Astigmatism / Q000209:etiology; D003261:Contact Lenses / Q000009:adverse effects; D006801:Humans; D009216:Myopia / Q000628:therapy*; D012029:Refraction, Ocular; D012449:Safety