【Summary Description】 In today's society, with the popularization of electronic learning, entertainment, and work, excessive eye use has become a common problem faced by the public. According to the statistics of China Ophthalmology Network, the proportion of myopic population in China accounts for 30% of the total population, and the proportion of myopic population in urban areas is as high as 33%. The proportion of primary school students wearing glasses is 30%, middle school students is 50%, and college students has reached 75%. The number of myopia cases in China is as high as 360 million, ranking first in the world.

In today's society, with the popularization of electronic learning, entertainment, and work, excessive eye use has become a common problem faced by the public. According to the statistics of China Ophthalmology Network, the proportion of myopic population in China accounts for 30% of the total population, and the proportion of myopic population in urban areas is as high as 33%. The proportion of primary school students wearing glasses is 30%, middle school students is 50%, and college students has reached 75%. The number of myopia cases in China is as high as 360 million, ranking first in the world.
Understanding the Importance of Eyes
Our eyes are able to see a beautiful world because light passes through the lens and other structures of the eye, causing objects to be projected onto the retina like taking a photo, and then converted into signals that are transmitted to the visual nerves in the brain. This process may seem simple, but it is actually complex and intricate. Therefore, any factor that affects light transmission and signal conversion may have an impact on our vision.

Eye habits and eye care knowledge
1. Reasonably control the usage time of electronic products
In today's society, electronic products have become an indispensable part of our lives. However, prolonged use of electronic devices can cause significant strain on the eyes. Therefore, controlling usage time is particularly important. When learning to use electronic products, a single use should not exceed 25 minutes; When used for entertainment, a single use should not exceed 15 minutes; The cumulative daily usage time should not exceed 2 hours, and minors should be controlled within 1 hour. At the same time, when using electronic products, the height of the screen center should be the same as or slightly lower than the eyeball to reduce eye fatigue.
2. Choose the appropriate screen
During online classes, the screen should be selected according to the principle of "choosing bigger than smaller". The order of screen size is projection, TV, computer, tablet, and mobile phone. A large screen can provide a wider field of view and reduce eye fatigue.
3. Pay attention to lighting and reflection
The impact of light on the eyes cannot be ignored. Light that is too weak or too strong can cause harm to the eyes. Therefore, sufficient and comfortable lighting should be maintained to avoid reflection. There should be a lighting device next to the desk to reduce the harm of reflection to the eyes. When using electronic products at night, turn on the lights and adjust the screen brightness appropriately.
4. Correct sitting posture and reading posture
The proper sitting posture directly affects the health of the eyes. When reading and writing, one should develop the habit of "one foot, one inch, one fist", that is, keeping the eyes about one foot away from the book, sitting upright one fist away from the desk, and holding the pen one inch with the fingers. At the same time, the reading distance should be moderate, generally 30 centimeters.
5. Follow the "20-20-20" eye protection rule
After using your eyes at close range for 20 minutes, you should look out at a distance of 20 feet (about 6 meters) for no less than 20 seconds. This rule can effectively alleviate eye fatigue and prevent the occurrence of myopia.
6. Outdoor activities and sports
Regularly participating in outdoor activities and strengthening exercise can achieve the effects of bathing in green plants, relaxing eye muscles such as the ciliary body, protecting vision, and preventing myopia. Engaging in outdoor activities for no less than 2 hours per day is one of the most effective ways to reduce and control myopia.