A woman temporarily lost her eyesight after staying up late to watch TV series! Many people are still making these mistakes...

Expert of this article: Li Zongou, Master of Ophthalmology, First Affiliated Hospital of Dalian Medical University

This article was reviewed by Lu Jianmin, chief physician, deputy director of the Department of Ophthalmology, the First Affiliated Hospital of Dalian Medical University

I believe many people go to bed at night

There will be such a "ritual"

Turn off the lights, tuck in the blanket, pick up your phone

Many people like to play with their phones before going to bed.

Time passed by while playing

"It's 11pm, it's not too late, let's watch some videos"

"It's midnight. It's so late. Just check your phone for a while and then go to sleep."

The actual sleeping time

Usually 1 or 2 in the morning

…

But you know what?

This habit is actually very harmful

recently

Ms. Wu worked on the computer during the day for 3 consecutive days

After get off work, I watched TV series until 3 am

Then suddenly blurred vision

Temporary blindness

Finally diagnosed with video terminal syndrome

So

Why does staying up late in front of screens lead to blindness?

How to prevent it?

Let’s find out together

Why does staying up late in front of screens lead to blindness?

Working at close range for a long time will reduce the flexibility of vision adjustment, which will cause certain visual fatigue. In addition to the influence of close distance itself on adjustment, the flicker of electronic screens such as mobile phones and computers will also interfere with adjustment. In addition, environmental factors at night, poor indoor lighting conditions and excessive screen brightness will further affect the ability to adjust.

If you stay up late for a long time looking at your phone or computer, you will experience convergence fatigue, blurred vision, decreased vision and other symptoms, which will cause serious damage to your visual system and may also induce acute angle-closure glaucoma and even cause blindness.

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Long-term use of electronic devices such as mobile phones, computers, and tablets can cause a series of problems throughout the body, such as blurred vision, dry eyes, shoulder and neck pain, dizziness, and insomnia. Many people have experienced similar symptoms to varying degrees. In response to the frequent occurrence of these symptoms, modern medicine has named these symptoms as Visual Display Terminal Syndrome (VDTS).

What are the symptoms of Video Terminal Syndrome?

Vision loss: Staring at the screen for too long will cause temporary vision loss, which will return to normal after a period of rest. From a long-term perspective, occasional visual fatigue will not have much impact on visual health. However, frequent and repeated excessive use of the eyes without paying attention to protection and rest may cause permanent vision damage to a certain extent.

Dry eyes: When staring at the screen, the frequency of blinking will be significantly reduced due to concentration, and the ocular surface cannot obtain new tear film through blinking in time, causing the ocular surface to dry and damage the corneal epithelium, which can easily lead to dry eyes. If you are also in an air-conditioned room with poor ventilation, reduced air humidity and poor air quality, the degree of dry eyes will be aggravated, and even cause microbial infection and inflammation of the ocular surface.

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Aggravated myopia: The visual system of adolescents is not yet fully developed. They stare at mobile phones, computers and other screens for a long time without getting enough rest for their eyes. If this is coupled with poor lighting and lack of outdoor activities, it is easy to cause myopia to deepen and worsen.

In addition, the symptoms of video terminal syndrome are not only manifested in the eyes, but also include soreness in the fingers and wrists caused by long-term typing on the keyboard and holding the mobile phone; discomfort and pain in the neck, shoulders, waist and back caused by long-term sitting with the head down and lack of activity and relaxation; continuous staring at the screen and excessive fatigue leading to symptoms of neurasthenia such as dizziness, nausea, insomnia, hair loss, etc.; and even negative emotions such as monotony, irritability, etc.

Who are the high-risk groups?

Teenagers: With the changes in lifestyle in recent years, teenagers have more opportunities to be exposed to video terminals. Video terminal syndrome is also developing at a younger age, and the incidence of myopia among teenagers is also on the rise.

Computer workers: People who work in front of computer screens for long periods of time, stay mentally tense and do not take breaks are likely to suffer from video terminal syndrome. If the working environment is dry and the air is not circulated, and they do not maintain a good sitting posture, the risk of this group of people will be further increased.

Regardless of age, if you have bad eye habits, you may suffer from video terminal syndrome. As you age, the eye's ability to adjust will gradually decline, and middle-aged and elderly people should be more vigilant.

How should it be prevented?

1. Control the duration of eye use: When using a mobile phone, computer, etc. for more than 30 minutes continuously, you should close your eyes to rest or look into the distance to relax your eye muscles. For teenagers, parents should strictly supervise their children's use of electronic products. The younger the age, the shorter the continuous use of electronic products should be.

2. Pay attention to the eye environment: use computers, mobile phones, etc. in places with appropriate lighting, avoid light that is too strong or too weak, which increases the burden on the eyes. At the same time, control the distance between the eyes and the screen, and do not look at the phone while riding or walking.

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3. Increase air humidity: Increasing air humidity and improving air quality can moisten the eye surface and improve dry eyes. In addition, properly adjusting the angle between your sight and the screen, or consciously increasing the frequency of blinking, can also alleviate the symptoms of dry eyes to a certain extent.

4. Ensure balanced nutrition: eat less sweets, eat more fresh vegetables and fruits, and consume appropriate amounts of foods rich in vitamin A, such as animal liver, carrots, blueberries, etc. These can not only increase the body's antioxidants, but also reduce the consumption of photosensitive substances in the retina to a certain extent, which is beneficial for protecting eyesight.

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