现在智能手机的功能很多,很多人睡前玩手机玩得停不下来,导致眼睛在不知不觉中负荷过度。关灯后玩手机,只剩下屏幕上发出的亮光,这时光线对比度会特别高,眼睛更容易感到疲劳。同时,长时间用眼使得眨眼次数减少,泪液分泌减少,容易造成眼睛干涩。长时间用眼本身就容易造成视疲劳,手机屏幕上不断变换的光影又会对眼睛造成持续的刺激。当眼睛不停地捕捉这些光影时,就会对黑眼球表面的泪膜层造成损害,从而加剧眼睛的疲劳和干涩、刺痒等感觉,甚至使眼睛有刺痛、流泪、畏光等不适症状出现,从而影响视力甚至损伤眼睛。 Now many functions of smart phones, many people play mobile phone before going to bed can not stop playing, leading to unknowingly overload the eyes. Turn off the lights and play the phone, leaving only the light emitted on the screen, then the light contrast will be particularly high, the eyes more easily feel tired. At the same time, the blink of an eye for a long time makes the number of eyes reduced, tear secretion decreased, easily lead to dry eyes. Prolonged use of the eye itself easily lead to visual fatigue, the constantly changing light and shadow on the screen of the mobile phone will cause continuous stimulation of the eyes. When the eyes constantly capture these light and shadow, it will damage the surface of the black eye tear film, thereby exacerbating the eye fatigue and dryness, itching and other sensations, and even the eyes have sting, tears, photophobia and other symptoms appear , Thus affecting eyesight and even damage the eyes.