Abstract: Background　 Patients with receded near point of convergence are often found with heterophoria clinically. Studies about near point of convergence mostly focus on its distribution and its association with age，sex and refractive error，but rarely on its association with heterophoria. Objective　To investigate the near point of convergence and influencing factors in community-dwelling people with corrected-to-normal vision，providing a basis for screening for convergence insufficiency in the community. Methods　In January 2020，197 individuals living in Chunfeng Community，Shenzhen's Luohu District were screened for near point of convergence，far and near heterophoria，refraction and axial length by convenience sampling method. Linear regression was used to estimate the association of near point of convergence with age，refraction，axial length and far and near heterophoria. Bivariate correlation analysis was used to estimate the association of near point of convergence with age and far and near heterophoria. Results　Finally，112 eligible cases with complete data were enrolled，with age，near point of convergence，axial length，degrees of far and near heterophoria，refractive degrees of right and left eyes on average were（36.9±19.9）years，（5.18±4.60） cm，（23.27±1.10）cm，（-0.34±1.78）PD，（-4.79±5.28）PD，（-1.20±2.18）D，and（-1.01±1.98）D, respectively. Multiple linear regression analysis showed age and near heterophoria were associated with near point of convergence（P<0.05）. Near point of convergence was positively correlated with age（r=0.36，P<0.01），and negatively correlated with the degree of near heterophoria（r=-0.20，P=0.03）. Conclusion　Near point of convergence was associated with near heterphoria and age. This study indicates that it is feasible to carry out the screening for near point of convergence in the community.

Key words: The near point of convergence, Heterophoria, Age, Screening, Community

摘要： 背景　临床中发现集合近点退后的患者常常伴有隐性斜视。但是，集合近点的研究集中在集合近点的正常值、年龄、性别、屈光不正等方面，对集合近点和隐性斜视度数的关系研究相对较少。目的　研究社区矫正视力正常人群的集合近点及其影响因素，为在社区开展集合不足检查提供依据。方法　于2020年1月以方便抽样的方式选取深圳市罗湖区春风社区197人进行筛查，检查项目：集合近点、远近隐性斜视度数、屈光度数、眼轴。采用线性回归法分析集合近点和年龄、屈光度数、眼轴、远近隐性斜视度数的关系；应用Pearson相关分析集合近点与年龄远近隐性斜视度数的关系。结果　具有完备检查资料且符合研究条件的共122人，平均年龄（36.9±19.9）岁，平均集合近点（5.18±4.60）cm，平均眼轴长度（23.27±1.10）cm，平均远隐性斜视度数（-0.34±1.78）PD，平均近隐性斜视度数（-4.79±5.28）PD，右眼屈光度数（-1.20±2.18）D，左眼屈光度数（-1.01±1.98）D。多元线性回归分析结果显示：年龄和近隐性斜视度数是集合近点的影响因素（P<0.05）。集合近点与年龄呈线性正相关（r=0.36，P<0.01）；集合近点与近隐性斜视度数呈线性负相关（r=-0.20，P=0.03）。结论　近隐性斜视度数、年龄与集合近点有密切关系。在社区开展集合不足的检查是可行的。

关键词: 集合近点, 隐性斜视, 年龄, 筛查, 社区