Adjunctive effect of orthokeratology and low dose atropine on axial elongation in fast-progressing myopic children-A preliminary retrospective study
Adjunctive effect of orthokeratology and low dose atropine on axial elongation in fast-progressing myopic children-A preliminary retrospective study
复制标题
角膜塑形镜和小剂量阿托品对快速进展性近视儿童眼轴延长的辅助作用——初步回顾性研究
DOI:
10.1016/j.clae.2018.10.026
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发表时间:
2019-08-01
影响因子:
3.2
通讯作者:
Xue, Feng
中科院分区:
文献类型:
--
作者:
Chen, Zhi;Huang, Shengmei;Xue, Feng
Purpose: To investigate the adjunctive effect of orthokeratology (ortho-k) and low-dose atropine eye drops on axial length elongation in fast-progressing myopic children.Methods: Axial elongation in 60 eyes of 60 subjects who completed two years of ortho-k treatment was retrospectively reviewed. They were aged between 5.6-11.6 (mean, 8.3 +/- 1.5) years old when they started ortho-k treatment. During their first year of ortho-k treatment (Phase One), they all demonstrated a faster than 0.25 mm/yr axial elongation rate. They were then treated with nightly 0.01% atropine in addition to ortho-k treatment for another year (Phase Two). Annual axial elongation rates before and after atropine treatment were compared.Results: Baseline spherical equivalent refractive error was -2.65 +/- 1.08 DS and axial length was 24.34 +/- 0.92 mm for the study cohort. The mean axial elongation rate was 0.46 +/- 0.16 mm/yr during Phase One, being significantly faster in younger children (t = -4.920, P < 0.001). When atropine was added, annual axial elongation rate significantly decreased to 0.14 +/- 0.14 mm/yr (t=-11.988, P < 0.001), and those who were fast progressors in Phase One had a greater reduction in the rate of axial elongation during Phase Two (t=-8.052, P < 0.001).Conclusions: Axial elongation rate is faster in younger children undergoing ortho-k treatment. For fast myopia progressors, low dose atropine may significantly slow axial elongation in addition to ortho-k's treatment effect. Those who have faster axial elongation after ortho-k treatment will benefit more from the addition of low dose atropine, regardless of their refractive error and age.