Reading and writing in natural light is the most comfortable. At the same time, avoid direct sunlight. When studying at night, be sure to turn on the ceiling lamp and desk lamp in the room at the same time to reduce the indoor light and shade difference and keep the desktop light in harmony with the surrounding environment.

In order to protect your eyes, you should follow the following specific suggestions when reading and writing:

When studying in the classroom or at home, you should try to do it under natural lighting, especially during the day or when the weather is fine. This can protect the eyes to the maximum extent and avoid visual fatigue. However, direct sunlight should be avoided in books to avoid eye discomfort.

When using eye protection lamps, we should choose those lamps with high-frequency flicker principle, whose flicker frequency exceeds the reaction speed of human eyes, thus reducing visual fatigue. However, it should be noted that long-term use of eye protection lamps may also cause eye discomfort.

When studying at home, you should choose an LED desk lamp with appropriate brightness, and its bulb is 40-60W (central illumination is 500-750Lux, brightness is 120- 150 Candeira /m2). At the same time, adjust the position and angle of the desk lamp to avoid the discomfort caused by direct light and reflected light to the eyes.

When surfing the Internet, the brightness and contrast of the electronic screen should be adjusted according to the ambient brightness to reduce visual discomfort. In the case of sufficient daylight during the day, the brightness level of the electronic screen is adjusted to a medium level (40%-60%), and the contrast is adjusted to an upper-middle level (60%-80%). It is suggested to turn on the room light at night and adjust the brightness of the electronic screen to a more comfortable level according to the brightness level of the room light.