Books and periodicals printed on white paper are beautiful in appearance and printing, but they are easy to get tired when reading.
Whether reading a book or watching TV, too strong contrast will have a bad effect on vision.
Too white paper will increase the color contrast, and the second is that the reflected light is too strong, which will excessively stimulate the visual nerve and easily cause visual fatigue. Why turn on the light when watching TV is to reduce the contrast. If the paper looks dazzling, or you feel tired after reading less than 10 minutes, the paper color is definitely not suitable.
2. The writing posture must be correct. Otherwise, it will do great harm to eyes (myopia).