The harm to children's eyes caused by playing with mobile phones should not be underestimated!

With the development of society, mobile phones have become an indispensable part of people's lives. Children nowadays hold a mobile phone in their hands every day and refuse to put it down. However, long-term use of mobile phones is very harmful to children's eyes. It usually causes myopia, dry eyes, visual fatigue and conjunctivitis. These diseases will endanger the growth and future of children, so parents must pay special attention.

1. Myopia

Because the words and picture sight icons on mobile phones are designed for adults, and children's vision development increases gradually like height. For example, a 2-year-old child only has a vision of about 0.4. How tiring it would be for him to play with the mobile phone every day and look at pictures and texts that are much smaller than them.

When focusing on the content on the mobile phone screen, the eyes will unconsciously get closer and closer to the screen, which will increase the angle of eye focus and cause the ciliary muscles of the eyes to contract more.

Over time, the ciliary muscle will easily become fatigued, causing accommodation spasm (pseudomyopia), which will continue to develop into true myopia.

2. Dry eyes

A normal person blinks 10-20 times per minute, and each blink lasts about 0.2-0.4 seconds. Blinking can stimulate the lacrimal glands to secrete tears. At the same time, the blinking action can evenly spread the tears on the cornea and conjunctiva to form a tear film, which can keep the cornea and conjunctiva moist and avoid dryness.

When focusing on the mobile phone screen, the number of blinks will be less than normal, which will inevitably lead to a decrease in tear secretion, exposing the eyeballs to dry air, thereby aggravating eye fatigue and dryness, itching and other sensations, and even causing discomfort symptoms such as eye stinging, tearing, photophobia, etc., which will cause dry eye problems over a long period of time.

3. Visual fatigue

The content in the mobile phone is constantly changing, the light source in the screen is unevenly distributed or flickering, the fonts and images are relatively small and thin, and long-term close-range eye use can easily cause eyestrain.

If the surrounding environment is dim and the phone screen is bright, the damage to the eyes will be greater.

4. Conjunctivitis

Keeping your head down for a long time while playing with your phone can easily cause blood to flow to your eyes, leading to mild congestion of the conjunctival blood vessels, thereby inducing chronic inflammatory lesions of the conjunctival tissue and causing chronic conjunctivitis.

Children playing with mobile phones and tablets for a long time is not only harmful to their eyes,

For children who are in the developmental stage and often bow their heads for a long time,

It may also cause the cervical curvature to straighten.