目的：了解新疆喀什地区英吉沙县7~16岁儿童青少年弱视患病情况及其相关因素，为制定科学有效的眼健康防控策略提供依据。方法：选取新疆喀什地区英吉沙县3 261名在校儿童青少年，对其进行裸眼视力、最佳矫正视力、屈光度、眼位和眼底情况等检查，并通过问卷调查收集其基本人口学信息、近视家族史、用眼情况和睡眠情况，采用Logistic回归分析7~16岁儿童青少年弱视患病的相关因素。结果：英吉沙县儿童青少年弱视的患病率为1.99%（95%·CI: 1.51~2.47）。弱视患病率在学生类型、性别、近视家族史、主观睡眠质量、每天写作业时间、每天睡眠时间等方面比较差异无统计学意义（P＞0.05），在斜视、近视、远视、屈光参差、每天使用电子产品时间等方面比较差异有统计学意义（P＜0.05）。多因素回归分析结果显示，斜视、远视、屈光参差及每天使用电子产品时间与弱视相关，对应的OR值相应为3.82（95%CI: 1.93~7.58，P＜0.001）、10.88（95%CI: 4.85~24.40，P＜0.001）、13.54（95%CI:6.84~26.78，P＜0.001）和0.25（95%CI: 0.12~0.54, P＜0.001），合并斜视、远视或屈光参差的儿童青少年患弱视的风险增加。每天使用电子产品时间＞60 min的儿童青少年患弱视风险较使用时间≤60 min降低。弱视类型以屈光不正性弱视和屈光参差性弱视为主。结论：在新疆喀什地区英吉沙县7~16岁儿童青少年人群中，屈光不正和屈光参差是弱视患病的主要原因。斜视、远视、屈光参差、每天使用电子产品时间是弱视的影响因素。

Objective: To conduct a comprehensive investigation into the prevalence of amblyopia and its influencing factors among children and adolescents aged 7-16 in Yingjisha County, Kashgar Prefecture, Xinjiang. The ojective is to furnish a solid basis for formulating scientific and effective eye health prevention and control strategies. Methods: A total of 3,261 school-aged children and adolescents in Yingjisha County, Kashgar Prefecture, Xinjiang, were selected for this study. The examinations included uncorrected visual acuity, best-corrected visual acuity, refractive error, ocular alignment, and fundus condition. A questionnaire was used to collect demographic information, family history of myopia, daily eye-use habits, and sleep status. The data were analyzed using SPSS statistical software, and logistic regression was employed to explore factors associated with amblyopia in children and adolescents aged 7-16. Results: The study revealed that the prevalence of amblyopia among children and adolescents in Yingjisha County was 1.99% （95% CI: 1.51-2.47）. There were no significant differences (P > 0.05) in the prevalence of amblyopia across student type, sex, family history of myopia, subjective sleep quality, daily homework duration, or daily sleep duration. However, significant differences (P < 0.05) were observed in cases involving strabismus, myopia, hyperopia, anisometropia, and daily screen time. Multivariate regression analysis indicated that strabismus (OR = 3.82, 95% CI: 1.93-7.58, P < 0.001), hyperopia (OR = 10.88, 95% CI: 4.85-24.40, P < 0.001), and anisometropia (OR = 13.54, 95% CI: 6.84–26.78, P < 0.001) were positively correlated with amblyopia. Conversely, children and adolescents who used electronic devices for >60 minutes per day had a lower risk of amblyopia (OR = 0.25, 95% CI: 0.12-0.54, P < 0.001) compared to those with ≤60 minutes or less of daily screen time. The most common type of amblyopia was mixed amblyopia （60.00%）, followed by anisometropic amblyopia （23.08%）, refractive amblyopia （12.31%）, and strabismic amblyopia （4.62%）. Among mixed amblyopia cases, the combination of refractive amblyopia and anisometropic amblyopia was the predominant pattern （64.10%）. Conclusions: Refractive errors and anisometropia are the main causes of amblyopia. Strabismus, myopia, hyperopia, anisometropia and the duration of electronic device use are identified as influencing factors for amblyopia.

目的：探讨中国西北地区60岁以上人群晶状体厚度（lens thickness, LT）和晶状体相对位置（relative lens position,RLP）的影响因素以及与眼前房角结构的相关性，为探索晶状体在原发性闭角型青光眼疾病中的作用机制提供依据。方法：横断面研究，纳入2024年4—6月在新疆喀什地区英吉沙县社区人群中检查的60岁以上正常受检者，采用眼前节相干光断层扫描仪等，测量双眼眼球生物学参数。将患者右眼纳入研究范围，通过相关性分析和线性回归模型分析晶状体参数变化与房角结构的相关性。结果：性别、腰围和眼轴长度（axial length, AL）为RLP的独立预测因子。年龄越大，晶状体越厚，70岁前LT与AL呈正相关，眼轴、LT和RLP是眼前房角巩膜突前500 μm开放距离（AOD500）的独立预测因子，其多元线性回归方程为：AOD500=-2.501 4+0.083 3AL-0.115 7LT+7.0211RLP-0.0026Sex-0.0010身高。 结论：新疆喀什地区60岁以上人群中，女性、腰围大和眼轴短提示晶状体相对位置靠前，而晶状体厚度、相对位置以及眼轴显著影响眼前房角开放距离，成为闭角型青光眼发病的潜在危险因素。

Objective: To explore the influencing factors of lens thickness (LT) and relative lens position (RLP) in individuals aged 60 and above in Northwestern China, as well as their correlation with anterior chamber angle structure. The aim is to provide evidence for exploring the role of the lens in the pathogenesis of primary angle - closure glaucoma. Methods: A cross - sectional study was conducted. Normal subjects aged 60 and above were enrolled from community - based examinations in Yingjisha County, Kashgar region, Xinjiang, between April and June 2024. An anterior segment optical coherence tomography was used to measure ocular biological parameters of both eyes. Only the right eyes of the subjects were included in the analysis. The correlation between changes in lens parameter and angle structure was examined through correlation analysis and linear regression models. Results: Gender, waist circumference and axial length emerged as independent predictors of the relative lens position. As age increased, the lens became thicker. Before the age of 70, lens thickness was positively correlated with axial length. Axial length, LT and RLP were identified as independent predictors of the anterior chamber angle scleral spur anterior 500 - μ m - opening distance (AOD500). The multiple linear regression equation is as follows: AOD500 (mm) = -2.5014 + 0.0833AL (mm) - 0.1157LT (mm) + 7.0211RLP - 0.0026Sex - 0.0010Height (cm). Conclusions: Among individuals aged 60 and above in Northwest China, being female, having a large waist circumference, and a short axial length are indicative of a relatively anterior lens position Furthermore, lens thickness, its relative position, and axial length significantly affect the anterior chamber angle opening distance, potentially contributing to the pathogenesis of angle-closure glaucoma.