目的：研究视疲劳患者中近视力受损的发生率及其影响因素。

方法：选取2017-05/2018-05在我院门诊就诊的视疲劳患者51例102眼，根据日常生活近视力是否受损分为日常近视力受损组(24例)和无近视力受损组(27例)，收集两组患者的一般资料，并进行常规眼部检查、主觉验光和双眼眼动参数检测。

结果：本组患者中裸眼近视力受损者27例(53%)，日常生活近视力受损者24例(47%)，无最佳矫正近视力受损者。日常近视力受损组患者年龄显著高于无近视力受损组，其中≥45岁的患者比例显著高于无近视力受损组(P<0.01)。两组患者中≥45岁的患者NRA/PRA、水平聚散力\〖BO(40cm)\〗、水平聚散幅度(40cm)均有明显差异(P<0.05)。

结论：视疲劳患者多伴有近视力受损，年龄增大、正负相对调节不平衡是其发生的主要影响因素。

METHODS: Totally 51 patients(102 eyes)with visual fatigue in our hospital from May 2017 to May 2018 were enrolled. According to whether the near vision of daily life is damaged, it is divided into daily near vision impairment group(24 cases)and no near vision impairment group(27 cases). General information of all patients were collected, and routine eye examination, subjective optometry and binocular eye movement parameter detection were detected.

RESULTS: In the survey, 27 patients(53%)with near vision impairment in naked eye and 24 patients(47%)with impaired near vision in daily life, and all patients had a significant improvement in visual acuity after correct optometry, and there was no one who has best corrected near visual acuity impairment. The age of patients with daily near vision impairment was significantly higher than that of patients without near vision impairment. The proportion of patients aged ≥45 years was significantly higher than that without near vision impairment(P<0.01). NRA/PRA, vergence \〖BO(40cm)\〗, and amplitude of vergence(40cm)were significantly different between the two groups(P<0.05).

CONCLUSION: Nearly half of patients with asthenopia would suffer NVI. The increase of age and imbalance between NRA and PRA as the predominant risk factors for its development.