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Objective@#To investigate the prevalence and influencing factors of poor eyesight among primary and middle school students in Tongzhou District, Beijing Municipality, so as to provide the evidence for developing control strategies for poor eyesight among primary and middle school students.@* Methods@#Grades 3 to 6 students in district- and township-level primary schools, grades 1 to 3 students in district- and township-level junior high schools, and grades 1 to 3 district- and township-level high schools were sampled in Tongzhou District using the stratified cluster sampling method from 2020 to 2021. Basic information, daily activity, sleep duration and eye-using habits were collected using the specific questionnaires for poor eyesight and influencing factors among students in the 2018 national program for common diseases and health risk factors surveillance program among Chinese students, and the height and body weight were measured. Factors affecting poor eyesight were among primary and middle school students identified using a multivariable logistic regression model. @*Results@#A total of 771 valid questionnaires were recovered, and the respondents included 392 male students (50.84%) and 379 female students (49.16%), and 321 primary school students (41.63%), 228 junior high school students (29.57%) and 222 high school students (28.79%). The prevalence of poor eyesight was 73.54% among the respondents. Multivariable logistic regression analysis showed that education phase (junior high school, OR=2.940, 95%CI: 1.931-4.476; high school, OR=5.998, 95%CI: 3.701-9.723) , obesity (OR=1.989, 95%CI: 1.258-3.146), daily exercise duration of less than 1 h (OR=1.931, 95%CI: 1.351-2.760), daily sleep duration of less than 8 h (OR=1.719, 95%CI: 1.193-2.477), at least 33 cm distance between a reading book and eyes (sometimes, OR=2.165, 95%CI: 1.320-3.550; never, OR=2.634, 95%CI: 1.767-3.928) and continuous short-distance eye use duration of 1 h and longer (OR=1.455, 95%CI: 1.020-2.078) were associated with poor eyesight among primary and middle school students.@*Conclusions@# The prevalence of poor eyesight is high among primary and middle school students in Tongzhou District. Higher grade, obesity, inadequate exercise and sleep duration and poor eye-using habits may increase the risk of poor eyesight.
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@#AIM:To analyze the visual status and prevalence of myopia in adolescent and children's cohort in Gaoping, Shanxi Province, and further discuss influencing factors of myopia. <p>METHODS:The data was from November 2018 to January 2019 in Gaoping, Shanxi Province. A multi-stage sampling method was used to select 181 big class children from kindergarten, 948 primary school students, 432 middle school students and 244 high school students. The questionnaires were distributed to those students, vision and diopter tests were conducted. Based on that information, the study analyzes the occurrence of myopia and its influencing factors in adolescent and children's cohort in this area.<p>RESULTLS: Totally 1805 students were selected in this study. The detection rate of poor eyesight was 78.28%(1413/1805). The prevalence of myopia was 64.38%(1162/1805), and the rate of wearing glasses was 51.46%(598/1162)in the myopic population. With the development of learning stage and age, the prevalence of myopia increased. The prevalence of myopia in girls(66.81%)was higher than that in boys(61.73%), and the prevalence of myopia in urban areas(66.54%)was higher than that in rural areas(61.52%). Regression analysis results show that learning distance is a protective factor for the occurrence of myopia, while daily learning time, sweet food, time of first vision decrease, and interval between time of first vision decrease and time of wearing glasses are risk factors for myopia.<p>CONCLUSION: The prevalence of myopia among adolescents and children in Gaoping, Shanxi Province is relatively high. Using eyes at close range for a long time, unreasonable diet, and lagging prevention and intervention measures are all factors that can cause myopia.
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@#AIM:To analyze the visual status and prevalence of myopia in adolescent and children's cohort in Gaoping, Shanxi Province, and further discuss influencing factors of myopia. <p>METHODS:The data was from November 2018 to January 2019 in Gaoping, Shanxi Province. A multi-stage sampling method was used to select 181 big class children from kindergarten, 948 primary school students, 432 middle school students and 244 high school students. The questionnaires were distributed to those students, vision and diopter tests were conducted. Based on that information, the study analyzes the occurrence of myopia and its influencing factors in adolescent and children's cohort in this area.<p>RESULTLS: Totally 1805 students were selected in this study. The detection rate of poor eyesight was 78.28%(1413/1805). The prevalence of myopia was 64.38%(1162/1805), and the rate of wearing glasses was 51.46%(598/1162)in the myopic population. With the development of learning stage and age, the prevalence of myopia increased. The prevalence of myopia in girls(66.81%)was higher than that in boys(61.73%), and the prevalence of myopia in urban areas(66.54%)was higher than that in rural areas(61.52%). Regression analysis results show that learning distance is a protective factor for the occurrence of myopia, while daily learning time, sweet food, time of first vision decrease, and interval between time of first vision decrease and time of wearing glasses are risk factors for myopia.<p>CONCLUSION: The prevalence of myopia among adolescents and children in Gaoping, Shanxi Province is relatively high. Using eyes at close range for a long time, unreasonable diet, and lagging prevention and intervention measures are all factors that can cause myopia.
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@#AIM:To analyze the visual acuity and diopter of students at different learning stages in Baoshan District, Shanghai. <p>METHODS: By stratified random sampling, 3002 students were randomly selected from 14 grades of Baoshan from middle class in kindergarten to senior three in middle school. Chi-square analysis and Kruskal-Wallis <i>H</i> test were used to compare the difference of myopia rate, refractive error rate and visual impairment among students at different learning stages and gender. <p>RESULTS: With the increase of learning stage, the rate of poor eyesight increased from 18.52% to 87.12%. There were differences in the rate of poor eyesight among different learning stages(<i>P</i><0.05). There were differences in the proportion of poor eyesight between boys and girls in junior and senior middle schools(<i>P</i><0.05). There were differences in the rate of poor eyesight with different degrees(<i>P</i><0.01). The proportion of myopia in different learning stages was different(<i>P</i><0.05).<p>CONCLUSION:The rate of poor eyesight in students is high in Baoshan District. Attention should be paid to eye care of students.
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Objective To understand the occurrence status of poor eyesight,dry eye in primary and middle school students and its correlation.Methods School was used as sampling unit,and 300 cases of primary and middle school students were selected by stratified cluster random sampling.Results The poor vision prevalence rate was 48.0%,the prevalence rate of dry eye was 6.7%,the rate of poor eyesight with the grade increasing trend was gradu-ally increased,and the incidence of women was higher than men.The indicators of the observation group[BUT(tear) (6.4 ±2.4)s,SIt(Schirmer test)(10.4 ±4.9)mm,FL(corneal fluorescein staining)(3.1 +0.9)]were significantly better than the control group[BUT(13.7 ±3.3)s,SIt(15.3 ±5.4)mm,FL(1.8 ±1.0)],there were statistically significant differences between the two groups(t =12.6,4.7,-6.8,all P <0.05).Conclusion Students of poor eyesight and dry eye is high prevalence,and the poor eyesight is a dry eye prone group,right eye should be a reasona-ble way of life to students.