How to protect eyesight of primary school students

As our family conditions improve, many primary school students use mobile phones and other electronic devices at a young age. Of course, primary school students are easily attracted to games, and long-term use of mobile phones or computers will lead to decreased eyesight. Therefore, if we want to protect the eyesight of primary school students, we should reduce the frequency and time of primary school students' use of electronic devices, and let primary school students do eye exercises and have regular vision tests.

How to protect eyes of primary school students

Primary school students should protect their eyes by using their eyes scientifically, doing eye exercises regularly, observing the do's and don'ts of daily life, and checking their eyesight regularly.

1. Tips for protecting your eyes

1.1. Use your eyes scientifically

1.1.1. Primary school students should protect their eyes by reading and writing in the correct posture: when reading or writing, the best distance between the eyes and the book should be about one foot. For this reason, the heights of tables and chairs should be properly matched. High chairs and low tables or low chairs and high tables are not good for eye health. Do not tilt your head when writing, and do not read books or newspapers while walking, riding in a car or on a boat.

1.1.2. Primary school students should protect their eyes by reading and writing at appropriate times: prolonged use of the eyes such as reading, writing, drawing, etc. can easily fatigue the eye muscles and lead to myopia. Therefore, every hour of reading and writing, you should go outdoors to look into the distance or do physical activities for 10 minutes. This is an effective way to eliminate eye muscle fatigue and prevent myopia.

1.1.3. Primary school students need sufficient light to protect their eyes: Sufficient light is an important aspect of maintaining normal vision. Students should not read or write in too dark light, such as at dusk or in a dark room. When reading or writing at night, the light should not be too dim, nor should it be flickering or glaring. The light should come from the front left to avoid shadows blocking the view. Do not read or write under strong light (such as sunlight or glaring light), and do not read under the shadow of flowers to reduce the accommodation burden on the lens and ciliary body in the eye.

1.1.4. Primary school students should protect their eyes by not watching TV for too long: TV has dynamic images, and watching TV for too long can easily lead to eye muscle fatigue and cause myopia. Therefore, the time spent watching TV should not be too long, generally it should be controlled within 2 hours, and every 30 minutes of watching, you should take a break for at least 5 minutes to allow your eyes to rest. The distance for watching TV should be appropriate, generally more than 2 meters away, and the angle should not exceed 45 degrees. In the room where you watch TV, there should be lighting of a certain brightness. You can turn on a small lamp, but the light should not shine directly on the screen or eyes. It is best to place it behind or to the side. When the TV is being adjusted, the jumping images on the screen are extremely harmful to the eyes, so you should close your eyes to avoid stimulation.

1.2. Keep doing eye exercises

Doing eye exercises is an effective way to prevent myopia and should be done every day. If you have not learned it before, you can gently massage the upper and lower eyelids, or close your eyes and rest, which will help the eye muscle fatigue to recover.

1.3. Do’s and Don’ts in Daily Life

Strengthen physical exercise, promote outdoor activities, get more sun exposure and breathe fresh air. Live a regular life, get up early and go to bed early, and maintain adequate sleep and proper rest. Pay attention to nutrition, do not be picky about food, do not eat snacks, eat more vegetarian food and foods rich in vitamins and calcium, such as pork liver, milk, eggs, etc.

1.4. Check your eyesight regularly

Have your eyesight checked regularly and make appropriate adjustments to your learning and maintenance based on your eyesight.

2. What to eat to protect your eyesight

2.1 Vitamin A

Vitamin A, also known as retinol, plays an important role in the formation of human vision. It is involved in the synthesis of rhodopsin in the retina. If vitamin A is insufficient, the eye's ability to adapt to dark environments will decrease, and in severe cases it may lead to night blindness.

Animal liver, cod liver oil, fish roe, whole milk and whole milk products, eggs, etc. are high in vitamin A. Carotene can also be converted into vitamin A in the human body, so it is called provitamin A. Provitamin A is found in high concentrations in green and yellow vegetables and fruits such as spinach, leeks, pea sprouts, alfalfa, green peppers, sweet potatoes, carrots, pumpkin, apricots, and mangoes.

Calcium

Calcium is the "protector" of eye tissue. Calcium deficiency in the body can not only cause a decrease in the elasticity of the retina, increased pressure in the lens, and elongation of the anterior-posterior diameter of the eyeball, but can also cause degenerative changes in the cornea and ciliary muscles, easily leading to vision loss or myopia.

Milk, beans, fungi, dried fruits and seafood are rich in calcium. When eaten with vitamin D, they help calcium absorption.

2.3. Trace elements: selenium, zinc, and chromium

Trace elements selenium, zinc and chromium can improve the function of eye tissue and prevent and treat vision loss.

Foods rich in selenium include animal liver, eggs, fish, shellfish, soybeans, mushrooms, asparagus, shepherd's purse, carrots, etc.; foods rich in zinc include liver, kidney, seafood, milk, cereals, beans, nuts, etc.; foods rich in chromium include beef, black pepper, brown rice, corn, millet, semolina, brown sugar, grape juice, edible fungi, etc.

2.4 Vitamin C

Vitamin C can reduce the damage of light and oxygen to the lens of the eye, thereby delaying the occurrence of cataracts. Foods containing vitamin C include bell peppers, tomatoes, lemons, kiwis, hawthorns and other fresh vegetables and fruits.