Abstract: Objective: To study cycloplegia using 1% cyclopentolate alone and 1% cyclopentolate combined with a tropicamide compound in children aged 6-12 years. Methods: In this prospective randomized controlled study, 98 children aged 6-12 years with ametropia were randomly divided into two groups: One group was given 1% cyclopentolate 3 times, the other group was given 1% cyclopentolate 3 times and a tropicamide compound 2 times. The spherical equivalent and pupil diameter were measured before and 30 min, 45 min and 75 min after the first eyedrop. The baseline data of the 2 groups were compared by an independent-samples t test. ANOVA of repeated measures was used to analyze the influence of the different methods on the sphericity equivalent (SE) and pupil diameter at different times. The correlation between the degree of cycloplegia and mydriasis was analyzed by Pearson correlation analysis. Results: The negative sphericity of the two groups decreased rapidly within 30 minutes after the first drop, the best effect was achieved in 45 minutes, and remained stable from 45 minutes to 75 minutes. The cycloplegia between different time points were statistically different (F=57.06, P<0.001) but there was no significant difference between the 2 methods. As time progressed, the difference in cycloplegia between the 2 methods was not significant. The pupil diameter of the 2 groups increased with the progression of time and was statistically significant (F=502.87, P<0.001). The pupil diameter of the group with the compound was larger than that of the single group (F=30.63, P<0.001), and as time progressed, the difference was also statistically significant (F=13.53, P<0.001). There was no correlation between the decrease in the negative SE and the increase in pupil diameter in the 2 groups. Conclusions: In children aged 6-12 years, the cycloplegia effect, onset time and duration of 1% cyclopentolate combined with a tropicamide compound are not better than that of 1% cyclopentolate alone, but mydriasis with the compound is significantly greater than 1% cyclopentolate alone.
王立华 陈巍 浦佳宁 冯晶晶. 环喷托酯单独用药和环喷托酯-复方托吡卡胺联合用药的睫状肌麻痹效果比较[J]. 中华眼视光学与视觉科学杂志, 2020, 22(11): 847-851.
Lihua Wang, Wei Chen, Jianing Pu, Jingjing Feng. Comparative Study on Cycloplegia with Cyclopentolate Alone and Cyclopentolate Combined with a Tropicamide Compound. Chinese Journal of Optometry Ophthalmology and Visual science, 2020, 22(11): 847-851. DOI: 10.3760/cma.j.cn115909-20200110-00007
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