Abstract: students with true myopia must choose to wear appropriate glasses. If you don’t wear it, squinting will occur when the vision is blurred, which will lead to excessive extrusion of the eyeball, accelerated degradation of vision, pathological changes, and even some people have obvious symptoms before they reach high myopia.
teenagers have strong eye adjustment. They can still see objects when the distance between books and eyes is up to 7-10 cm. However, if they often read and write at this distance, the adjustment of eyes will be extremely tense, which can form refractive (regulatory) myopia, the so-called false myopia.
no matter primary school students, junior middle school students or senior high school students, they are facing great academic pressure. Reading and doing homework for a long time, coupled with incorrect sitting posture and paying no attention to eye rest, it is easy to cause eyesight fatigue and reduce eyesight.
spend too much time with their eyes: most teenagers don’t rest for 3-4 hours in a row, such as reading books, doing homework and watching TV, and even go to bed late at night. In this way, the muscles inside and outside the eyes are in a tense state for a long time without rest. Over time, when looking at the distance, the muscles of the eyes can not relax and show a spasm state. When looking at the distance, they feel blurred and form myopia. If you read, write or watch TV for 40-50 minutes, you should take a break or look into the distance for a while.
are too close to the eyes: according to relevant data, juvenile myopia is often caused by too close to the eyes for a long time. Teenagers have strong eye adjustment. They can still see objects when the distance between books and eyes is up to 7-10 cm. However, if they often read and write at this distance, the adjustment of eyes will be extremely tense, which can form refractive (accommodative) myopia, that is, the so-called false myopia.
lighting light is too strong or too weak: if the sun shines on the book, the light is too strong, it will cause strong reflection, stimulate the eyes, make the eyes uncomfortable, and it is difficult to see the font; On the contrary, if the light is too weak, the written lighting is insufficient, and the eyes cannot clearly see the font, the head will move forward and get close to the book. The above two situations will lead to eye fatigue, excessive adjustment or spasm and form myopia.
to correctly prevent myopia, the following points should be achieved.
watch TV no more than 1.5 hours a day.
should ensure 8 ~ 9 hours of sleep every day.
should adhere to eye hygiene and do eye exercises 1 ~ 2 times a day.
it is important to have a proper view.
it should be noted that indoor vision is very limited, and long-term indoors will weaken the adjustment ability of eyes. Although today’s students pay more attention to their studies, there is always time to protect their eyes, so don’t make excuses for yourself and set aside enough time for outdoor vision, outdoor activities and physical exercise.
wear appropriate glasses.
students with true myopia must choose to wear appropriate glasses. If you don’t wear it, squinting will occur when the vision is blurred, which will lead to excessive extrusion of the eyeball, accelerated degradation of vision, pathological changes, and even some people have obvious symptoms before they reach high myopia.
play less mobile phones, computers and other electronic products.
pupils should spend less than 45 minutes each time; Children under 2 years old should avoid operating electronic products as far as possible; Children aged 0 to 6 should not use electronic products for more than 20 minutes each time, and the cumulative time per day should not exceed one hour. For junior and senior high school students and college students, controlling the use of electronic products needs to rely more on consciousness.
choose scientific eye care products.
using electronic products for a long time can not avoid blue light injury, so eye nutrition must be strengthened. Lutein and anthocyanin are internationally recognized visual nutrients and natural antioxidants. Proper use of eye care products containing this ingredient can reduce the damage of blue light to eyes.