%0 Journal Article
%T Seven-year retrospective analysis of the myopic control effect of orthokeratology in children: a pilot study
%A Alan Kwok-Hei Mok
%A Cindy Sin-Ting Chung
%J Clinical Optometry
%D 2011
%I Dove Medical Press
%R http://dx.doi.org/10.2147/OPTO.S16599
%X -year retrospective analysis of the myopic control effect of orthokeratology in children: a pilot study Short Report (4125) Total Article Views Authors: Alan Kwok-Hei Mok, Cindy Sin-Ting Chung Published Date February 2011 Volume 2011:3 Pages 1 - 4 DOI: http://dx.doi.org/10.2147/OPTO.S16599 Alan Kwok-Hei Mok1,2, Cindy Sin-Ting Chung1 1Eye¡¯ni, Hong Kong, People¡¯s Republic of China; 2Department of Anatomy, LiKaShing Faculty of Medicine, The University of Hong Kong, Hong Kong, People¡¯s Republic of China Objectives: To investigate retrospectively the difference in myopia progression, over about 7 years, between two groups of Hong Kong Chinese myopic children who wore overnight orthokeratology lenses or single-vision spectacles. Methods: A total of 238 records of children wearing overnight orthokeratology lenses or single-vision spectacles from Eye¡¯ni optical shop (Hong Kong) between January 1999 and December 2009 were reviewed. Refractive and central corneal curvature data with 6-year or a longer follow-up period of 70 patients were retrieved: 34 children (15 boys and 19 girls, aged 9.2 ¡À 1.8 years) wore orthokeratology lenses and 36 (20 boys and 16 girls, aged 10.2 ¡À 2.0 years) wore spectacles. Myopic progression was determined as the change of myopia from the baseline to the final visit. Results: No statistically significant differences (P > 0.05) in age, central flat corneal curvatures, baseline refractive error, or follow-up period were observed between the two groups. Average myopic progression of the overnight orthokeratology contact lens cohort (-0.37 ¡À 0.49 D) was significantly less (P < 0.001) than of the single-vision spectacle group (-2.06 ¡À 0.81 D) over about 7 years. Conclusion: Our preliminary 7-year data support the claim that overnight orthokeratology contact lenses may be a feasible clinical method for myopic progression control. Prospective and randomized investigations are warranted to overcome the limitations of this retrospective study.
%K myopia
%K contact lens
%K orthokeratology
%K myopia progression
%U https://www.dovepress.com/seven-year-retrospective-analysis-of-the-myopic-control-effect-of-orth-peer-reviewed-article-OPTO