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目的了解长时间注视视频终端(VDT)对青少年学生眼健康的影响,并提出预防对策。方法对经常长时间连续注视VDT者视功能、屈光状态及眼进行检查,测定调节幅度、集合近点,并与很少或不操作VDT者的同样检查或测定情况进行对比。结果长时间连续注视VDT者,其眼的健康比非注视VDT者更容易出现眼痛、眼胀、视物模糊、视力下降等视疲劳现象,并且随注视时间的延长,视疲劳的倾向更明显,调节幅度降低,集合近点远离。两组比较差异有统计学意义(P<0·05)。结论长时间连续注视视屏终端较阅读书本等界面更易对眼产生负面影响,应加强预防VDT性眼健康损害。
Objective To understand the effect of VDT on eye health of adolescents for a long time and to put forward preventive measures. Methods Visual function, refractive status and ocular examination were performed on consecutive long-term VDT fixation, and the amplitude of adjustment and the set of near points were measured and compared with the same examination or measurement with or without VDT. The results of continuous long-term gaze of VDT, the eye health than non-gaze VDT were more prone to eye pain, eye swelling, blurred vision, decreased visual acuity and other visual fatigue, and with the fixation time, the tendency of visual fatigue is more obvious , Reduce the adjustment range, the collection away from the point. The difference between the two groups was statistically significant (P <0.05). Conclusion Prolonged continuous gaze-screen terminal is more likely to have a negative impact on the eye than reading books and other interfaces, and prevention of VDT eye health damage should be strengthened.