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| Comparative Study on the Results of Spot Vision Screening Instrument and Ciliary Muscle Paralysis Optometry |
| Jiang Li, Zhiwu Lou, Jianbo Tang |
| Zhiwu Lou, Email: louziwu@163.com |
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Abstract Objective: To compare the correlation, consistency, and differences between the refractive screening results of Spot binocular vision screening device and the results of ciliary muscle paralysis retinoscopy. Methods: In this retrospective study, 267 children (534 eyes) aged 1 to 5 years who were found to have suspected refractive abnormalities during eye health examinations from January 2021 to August 2022 in Huzhou Maternal and Child Health Hospital and met the criteria were included. Firstly, Spot binocular vision screening instrument was used to perform refractive examination in the natural state, and then used atropine eye gel to perform optometry after cycloplegia paralysis. The paired t-test was used to compare the differences between the two methods, the Spearman test was used to compared the correlation between the two methods, and the Bland-Altman test was used to compare the consistency of the two methods. Results: Atotal of 264 children (264 eyes) were ultimately included in the study. Using the Spot vision screening instrument, the spherical and cylinder diopters were 2.14±2.39 D and 1.57±1.20 D, respectively. Using atropine cycloplegia, the spherical and cylinder diopters were 3.54±2.77 D and 1.29±1.28 D. There was a high correlation (r=0.93, 0.93, P<0.001) and consistency between Spot optometry results and ciliary muscle paralysis optometry results in terms of spherical diopters and spherical equivalent, respectively. Only the cylinder vectors J45 showed statistically signifcant differences in the 2-year-old age group (t=2.71, P<0.001). Spearman correlation analysis found low correlation between J0 and J45 for both methods (P>0.05). However, Bland-Altman analysis showed that both methods had good consistency between J0 and J45. Conclusions: In the refractive examination of preschool children, the Spot binocular vision screening instrument has a high correlation and consistency with the ciliary muscle paralysis optometry, which helps to evaluate the refractive status and early detection of refractive abnormalities in preschool children and is suitable for the screening of refractive status in preschool children.
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Received: 15 March 2023
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| Fund: Huzhou City Science and Technology Bureau Project (2020GY29) |
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Corresponding Authors:
Zhiwu Lou, Email: louziwu@163.com
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