|
|
Clinical assessment of orthokeratology treatment for adolescents with moderate myopia |
Niu Yan,Li Bin,Ji Na |
|
|
Abstract Objective To assess the clinical efficacy of orthokeratology in the treatment of adolescents with moderate myopia; to assess the changes in refraction, corneal thickness and axial length after 1 year of wear. Methods This was a prospective study. Thirty-seven young myopia patients (9-15 years old) were fitted with orthokeratology lenses and refraction, visual acuity, and corneal curvature were measured. Patients wore the ortokeratology lenses for one year and then were required to discontinue wearing the lenses. Fifty patients (9-15 years old) were fitted with spectacles for the same time period. The changes in refraction and axial length were measured one month after the discontinuation of lens wear. Data were analyzed using repeated measured ANOVA and independent t test. Results After 1 year, the spherical equivalent refractions were -4.69±0.57 D in the orthokeratology lens group and -4.72±0.80 D in the spectacle group. Increases in spherical equivalent refraction were 0.31±0.21 D and 0.77±0.46 D, respectively, in the two groups, indicating a statistically significant difference (t=30.109, P<0.01). The axial length increases were 0.11±0.26 mm and 0.26±0.60 mm, respectively, in the two groups, indicating a statistically significant difference (t=18.565, P<0.01). The corneal thickness in orthokeratology group before and 1 year after lens wear was insignificantly different. Conclusion Orthokeratology treatment for moderate myopia in adolescents can significantly improve visual acuity. The progression of myopia can be controlled to a certain extent. And the increase in axial length can be effectively controlled.
|
Received: 26 January 2014
|
|
|
|
[1] |
谢培英. 角膜接触镜[M]. 2版. 北京:人民卫生出版社,1998:125-127;234-271.
|
[2] |
谢培英. 促进我国现代角膜塑形术的健康发展[J]. 中华眼科杂志,2007,43:676-679.
|
[3] |
戴祖优,曾骏文,钟兴武,等. 角膜塑型术控制近视发展的临床观察[J]. 眼视光学杂志,2008,10:288-294.
|
[4] |
谢培英,迟蕙,张缨,等. 长期配戴角膜塑形镜对角膜厚度和角膜内皮细胞的影响[J]. 中华眼科杂志,2007,43:680-683.
|
[5] |
Stone RA, Flitcroft DI. Ocular shape and myopia[J]. Ann Acad Med Singapore,2004,33:7-15.
|
[6] |
Queiros A, Gonzalez-Meijome JM, Jorge J, et al. Peripheral refraction in myopic patients after orthokeratology[J]. Optom Vis Sci,2010,87:323-329.
|
[7] |
Smith E, Greeman P, Ho A, et al. Methods and apparatuses for altering relative curvature of field and positions of peripheral, off-axis focal positions[P]. US patent NO:2006, 702:54-60.
|
[8] |
Cho P, Cheung SW, Edwards MH, et al. An assessment of consecutively presenting orthokeratology patients in Hong Kong based private practice[J]. Clin Exp Optom,2003,86:331-338.
|
[9] |
朱梦钧,冯浩雁,瞿小妹. 不同光学设计角膜塑形镜控制近视进展的临床观察[J]. 中华眼视光学与视觉科学杂志,2012,14:82-85.
|
|
|
|