学龄前高度远视和低度远视儿童屈光发育比较

doi:10.3760/cma.j.cn115909-20211212-00484

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Abstract Objective: To compare the characteristics of refractive development in preschoolers with high hyperopia and low hyperopia. Method: In this retrospective case-series study, a total of 43 preschool children (86 eyes) with hypermetropia who were admitted to Tianjin Medical University Eye Hospital from July 2020 to December 2021 were enrolled. According to the results of spherical diopter after ciliary paralysis, the children were divided into two groups: high hyperopia group 27 cases with 54 eyes and low hyperopia group 16 cases with 32 eyes.Recording the diopter and eye biologic parameters including axial length (AL), corneal curvature radius, axial length/corneal radius of curvature at baseline and follow-up of one year.Intra-group diopter and eye biological parameters were analyzed by self paired t test. Intra-group best corrected visual acuity was compared by Wilcoxon signed rank test. Independent sample t test was used to analyze the difference of changes in eye biological parameters between groups. Results: The annual decrease of equivalent spherical equivalent (SE) in high hyperopia group was (0.72±0.41)D (t=-9.26, P<0.001), compared to baseline (8.37±1.84)D. The difference of annual growths of AL in high hyperopia group [(0.31±0.18)mm] and low hyperopia group [(0.21±0.09)mm] was statistically significant (t=3.53, P=0.001). There was no significant difference between the annual changes of corneal curvature radius in the two groups. The annual increases of AL/corneal radius of curvature in high hyperopia group (0.04±0.02) was significantly different from that in low hyperopia group (0.02±0.03) (t=3.23, P=0.002). Conclusion: Compared with preschool children with low hyperopia, the annual increase of AL and AL/corneal radius of curvature was larger in preschool children with high hyperopia, suggesting that it is necessary to follow up children with high hyperopia closely.

Key words： high hyperopia low hyperopia axial length preschool children refractive development

Received: 12 December 2021

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Corresponding Authors: Xuehan Qian, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital; Tianjin Key Laboratory of Retinal Functions and Diseases; Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Tianjin 300384, China (Email: Drqianxh@126.com)

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	Lijun Wang
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Cite this article:

Lijun Wang,Nan Wei,Yuxian Ning等. Comparative on Refractive Development of Preschool Children with High Hyperopia and Low Hyperopia[J]. Chinese Journal of Optometry Ophthalmology and Visual science, 2022, 24(7): 536-540.

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https://www.cjoovs.com/EN/10.3760/cma.j.cn115909-20211212-00484 OR https://www.cjoovs.com/EN/Y2022/V24/I7/536

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