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    藍光易傷眼?眼科醫生:無須緊張 用眼習慣更重要

    WbPDNMyT

    新華社福州6月5日電(記者邰曉安)怕藍光傷眼,一些消費者會花重金購買護眼燈、配高價防藍光眼鏡。不過眼科醫生表示,無須對藍光太過緊張,小朋友要保護視力,關鍵還是要養成良好的用眼習慣。

    福州東南眼科醫院小兒眼科副主任房鑫鑫介紹,波長在400納米—500納米之間的光被稱作藍光,其中400納米—450納米的藍光對眼睛有害,但450納米—500納米之間的藍光則對人體有益。

    房鑫鑫表示,照射藍光可能導致眼底黃斑出現老年性黃斑病變,從而影響人對空間位置的感知能力,但這一結論是在實驗室長時間高強度的照射條件下得出的。目前從臨床來看,尚無藍光導致相關病變的直接證據。

    房鑫鑫認為,不僅是電子屏幕,許多LED燈具會產生藍光,太陽光同樣也有藍光,其廣泛存在于自然界中。一些商家在營銷中,往往把藍光的危害進行夸大。其實有害藍光對眼睛的傷害,還沒有不良用眼習慣造成的傷害大。

    “小朋友要保護好眼睛,最重要的還是保持良好的用眼習慣。”房鑫鑫說,一方面閱讀書寫時坐姿要端正,眼睛要與書本保持健康距離;用眼40分鐘后,眼睛要休息一下,勤做眼保健操;此外,不要讓小朋友過早、過長時間看電子屏幕。如果孩子已經近視,就需要盡快佩戴近視眼鏡。


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