Objective: To determine if the Distance Randont Stereotest can assist anomaly screening of visual function in young children. Methods: In this cross-sectional investigation, children (n=850) aged 4-6 years old were selected by cluster sampling from the kindergartens in the districts of Shinan, Shibei, Licang, and Laoshan from June 1 to 30, 2016. Visual acuity was tested by Lea numbers (GOOD-LITE) chart, and middle-far stereoacuity was examined by the Distance Randot Stereotest Picture. Strabismus was excluded by the cover-uncover test. Data were analyzed by kruskal-wallis H rank-sum test and crosstabs. Results: There were 762 normal children without strabismus and visual acuity problems. Among these, 583(76.5%) had 60 arcsec stereoacuity, 29(3.8%) had 100 arcsec, 10(1.3%) had 400 arcsec, and 140 (18.4%) had none. Based on kruskal-wallis H testing, the frequency of children with 60 arcsec, 100 arcsec, 400 arcsec and non-steroacuity had distinguished difference among the different ages (χ2=355.67, P<0.001). The ratio of the children who could figure out the 60 arcsec increased with age. There was a significant difference between the 4-year-olds and the 5-year-olds (χ2=173.23, P<0.001), the 5-year-olds and the 6-year-olds (χ2=278.23, P<0.001), the 4-year-olds and the 6-year-olds (χ2=150.68, P<0.001). Similarly, compared with the non-normal group, the normal group had significantly better stereoacuity (χ2=58.50, P<0.001) according to the crosstabs testing. Conclusions: Stereoacuity developed with increasing age. For the preschool children who could not understand the visual chart, and the Distance Randot Stereotest Picture may be helpful to screen for visual function anomalies.
刘冰,谢丽娟,韩秀敏,李廷,郭佃强. 青岛市4~6岁儿童中远立体视觉调查结果[J]. 中华眼视光学与视觉科学杂志, 2017, 19(12): 737-740.
Bing Liu,Lijuan Xie,Xiumin Han,Ting Li,Dianqiang Guo. Analysis of Middle-Far Stereoacuity among Children Aged 4 to 6 Years Old in Qingdao. Chinese Journal of Optometry Ophthalmology and Visual science, 2017, 19(12): 737-740. DOI: 10.3760/cma.j.issn.1674-845X.2017.12.006
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