Changes in corneal curvature after wearing the orthokeratology lens

摘要: Abstract Introduction The orthokeratology lens (OK lens) is designed to reshape the cornea and correct refraction error. Owing convenience of ceasing use glasses during day, OK increasing in myopic children. In this study, changes corneal curvature astigmatism after wearing were analyzed. Methods This retrospective cohort study included 65 children (130 eyes) who underwent full regular examinations. None participants had any ocular disease other than myopia astigmatism. lenses used four-zone, reverse-geometry lenses. each patient was checked annually patients discontinued daily for 10 days. Student t test repeated measures analysis variance (ANOVA) analyses performed compare results. Results radius showed a progressive annual increase with significant differences, both steepest flattest (p  Conclusion Corneal changed as grew older. There statistically studied. For fit lenses, should be regularly prior dispensing new set