视疲劳,或称眼疲劳或眼无力,首先由williamMackengin于1843年予以描述。它主要包括视力模糊、流泪、头痛三大特点。实践证明,屈光不正是视疲劳的主要原因之一,并且轻度屈光不正者更易引起眼和全身的干扰症状。在临床中,我们遇到一些视力正常而视疲劳症状明显的患者,甚至有一些是青少年。资料与方法为了探寻这部分人的视疲劳原因并给予正 Visual fatigue, or eye strain or eye weakness, was first described by William Mackengin in 1843. It mainly includes blurred vision, tears, headache three major characteristics. Practice has proved that refractive errors is one of the main visual fatigue, and mild refractive errors are more likely to cause eye and body interference symptoms. In clinical practice, we have encountered some patients with normal vision and obvious symptoms of fatigue, and some even adolescents. Materials and Methods In order to find out some of the causes of visual fatigue and give positive