Wearing anti-blue light glasses is usually not harmful, anti-blue light glasses mainly impede the excessive blue light to the eye irritation. The more electronic screens you use, the more blue light will enter your eyes, making them feel uncomfortable and fatigued. If you are wearing anti-blue light glasses can relieve the feeling of eye fatigue, so that the comfort of the eyes to get a certain degree of improvement. The one disadvantage of anti-blue light glasses is that they can be warm, especially when looking at white objects, yellowish, when looking at objects or fine vision will produce deviations in color, after excessive wearing will produce a certain distortion of color. It is recommended that anti-blue light glasses be worn when using electronic devices, and if you go out or read books, you can wear anti-blue light glasses without them.