First, use dark pictures as backgrounds, such as green, blue and yellow, which are generally used to protect eyes. Some pictures are better, and some have low contrast. Something soft. Not very nice pictures. However, to protect your eyes, it is not enough to say a picture, but also depends on your sitting posture and time.

Second, except for ultraviolet and blue light, other colors of light have basically no side effects on eyes. Color has little effect on preventing myopia. What matters is whether the light source is stable, whether the light is sufficient and whether the lighting is reasonable. Different colors have no effect on the eyesight of eyes. It is important that the brightness, luminosity and illumination angle of light will have a certain impact on vision, so the environment is very important.