关灯玩手机对眼睛的危害不容小觑。在黑暗环境中，瞳孔会自然放大以接收更多光线，而手机屏幕发出的强光会直接刺激视网膜，造成视觉疲劳、干涩、刺痛甚至暂时性视力模糊。长期如此，可能加速近视发展，尤其是青少年群体。此外，蓝光是手机屏幕释放的主要有害光线之一，它不仅会干扰褪黑激素分泌，影响睡眠质量，还可能对视网膜细胞造成累积性损伤，增加黄斑变性的风险。医学专家建议，夜间使用电子设备时应开启环境照明，调低屏幕亮度，并启用护眼模式或蓝光过滤功能。更重要的是，尽量避免在睡前长时间使用手机，以保护视力和维持良好的生物节律。
Using your phone in the dark can significantly harm your eyes. In a dark environment, your pupils naturally dilate to let in more light, making them more vulnerable to the intense glare from your phone screen. This can lead to eye strain, dryness, irritation, and even temporary blurred vision. Over time, this habit may accelerate the progression of myopia, especially among teenagers. Moreover, blue light—emitted abundantly by smartphone screens—not only disrupts melatonin production (affecting sleep quality) but may also cause cumulative damage to retinal cells, potentially increasing the risk of macular degeneration. Eye care professionals recommend using ambient lighting when using electronic devices at night, lowering screen brightness, and enabling night mode or blue light filters. Most importantly, avoid prolonged phone use before bedtime to protect your vision and maintain a healthy circadian rhythm.
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