How damaging is the internet to the retina? What is the most serious and what is the lightest?

Spending a lot of time online is not only harmful to your eyes. Computer rays accumulate in the body over the years, causing damage to the blood system, and at present, the medical community has found that video-induced epilepsy, especially the people who play game consoles, account for 5 per 1,000 of the number of epilepsy cases, and watch TV (black and white TV is slightly better) to cause headaches and epilepsy to account for 2 per 1,000. Too much information on the Internet is not only easy to cause visual fatigue, but also easy to cause similar neurological diseases.

Friends who like to surf the Internet must control the time they spend in front of the computer every day. Outdoor activities should be arranged to relieve stress on the nervous system.

Spending too much time on the Internet makes the cervical spine and eyes age in advance.

Lack of sleep online for long periods of time is detrimental to the health of teens.

Being online for long periods of time can lead to a variety of orthopedic diseases.

It was found that people who spend a lot of time online have a common characteristic. The common feature is: put the back of the right hand down, palm up, and a red and swollen piece in the lower left corner of the palm.

My eyesight is very bad right now on the Internet.

1. Cervical spondylosis.

Long-term long-term Internet users, due to the cervical spine in the flexion position for a long time, the 56th cervical vertebrae is the most stressed, and the neck muscles are also in a state of tension, the muscles and ligaments of the back of the neck are most susceptible to tensile strain, the front edge of the vertebral body is worn and proliferated due to the narrowing of the gap, which promotes the degeneration and herniation of the cervical intervertebral disc, and finally cervical spondylosis, resulting in neck and shoulder pain, upper limb pain, numbness, weakness, and insufficient blood supply to the brain, it can also cause dizziness, headache, nausea and other symptoms.

2. Lumbar strain and lumbar disc herniation.

The human lumbar spine is originally convex, and sitting for a long time makes the whole body weight on the sacrococcygeal end of the spine, and the pressure bearing surface is unevenly distributed, which will cause back and abdominal muscle strain. If the sitting posture is incorrect and the back is always hunched, the lumbar muscles, intervertebral discs and ligament tissues can be stretched for a long time, resulting in chronic injury and resulting back pain. At the same time, lumbar injury is the main cause of lumbar disc degeneration and the cause of lumbar disc herniation.

3. Frozen shoulder.

People who have been online for a long time have long-term tension and little movement in their shoulders, which is easy to induce frozen shoulder. When the temperature is high, such as surfing the Internet in an air-conditioned environment for a long time, the neck and shoulder are more susceptible to wind and cold, which will cause soft tissue congestion, edema, contracture of the shoulder tissues, synovial membrane of the shoulder joint, and adhesion between the articular cartilage, resulting in limited movement of the shoulder joint and pain when moving.

4. Joint diseases.

When the human joints are exercising, they produce a kind of synovial fluid in the joints, which can nourish the joint cartilage and prevent the wear and tear of the joints. However, the joints of sedentary and inactive people produce this synovial fluid significantly and become dry, which in turn is prone to bone and joint diseases.

After retinal detachment surgery, patients will experience mild eye pain, foreign body sensation, friction and other discomfort. Retinal detachment surgery is a surgery to close the main tear and reduce the detached retina. If you need retinal detachment surgery, it is recommended to come to Aier Eye Hospital, for more information, click here [**Make an appointment with an ophthalmologist].

The retina is a very thin layer of nerve tissue, tightly attached to the inner wall of the eyeball, its role is to be able to receive external signals, and transmit signals to the brain through the optic nerve, once the retina is not in close contact with the wall of the eyeball, our eyes can not play normal visual function, this is retinal detachment. Due to the characteristics of race and culture, China is a country with a high incidence of myopia. According to doctors, about 70 out of 100 patients with retinal detachment are nearsighted, especially high-grade myopia.

About 5 out of 100 patients with high myopia have retinal detachment.

If you want to know more about retinal detachment, it is recommended to consult Aier Eye Hospital, whose main business includes glaucoma, cataract, fundus disease, corneal conjunctival disease and dry eye disease, myopia surgery, and adolescent myopia prevention and control.

There are more and more people who are used to staying up late. Even, for some people, staying up late has become a part of the lifestyle. But from a health point of view, staying up late still hurts.

Staying up late can cause several damages to the body: frequent fatigue, decreased immunity. If people often stay up late, the most serious sequelae are fatigue and lack of energy; The body's immunity will also decline.

Naturally, symptoms of autonomic nervous system disorders such as colds, gastrointestinal infections, allergens, etc., will come to you.

From 11 p.m. to 3 a.m., it is the time when the body's meridians run to the gallbladder and liver. If these two organs do not get enough rest, they will be manifested in **, prone to roughness, yellowish complexion, dark spots, pimples and other problems. For people who are not used to going to bed early, they should also enter the deep sleep period at 1 a.m. at the latest.

What's worse is that staying up late for a long time will slowly develop neurological and psychiatric symptoms such as insomnia, forgetfulness, irritability, and anxiety.

When you have to stay up late, it is very necessary to prepare and protect yourself in advance and afterwards, at least to minimize the damage to your body from staying up late.

For example, go to bed late but eat on time, and make sure that your dinner is nutritious. Fish and legumes have the function of strengthening the brain and should also be included in dinner recipes. In the process of staying up late, you should pay attention to hydration, you can drink wolfberry jujube tea or chrysanthemum tea, which not only replenishes but also has the effect of removing fire.

In addition, eating some tonic medicines such as Liuwei Dihuang Pill has a good recuperation effect. Studies have found that Liuwei Dihuang pills improve the activity of interleukins in the spleen and have a certain anti-cancer effect. At the same time, it has a significant two-way regulatory effect on the immune function of polymorphonuclear leukocytes, which can effectively prevent and regulate sub-health conditions.

After staying up late, the best protection is naturally to "make up for the lost sleep". If that's not possible, a 10-minute midday nap is also useful. In addition, playing badminton and getting outdoors more often will help your physical health and mental well-being, and it is also a good way to get rid of the malaise after staying up late.

Of course not!

From a health point of view, staying up late can still do a lot of harm. Staying up late can cause several damages to the body: frequent fatigue, decreased immunity.

Staying up late often will cause fatigue, lack of energy, and the body's immunity will also decline.

You can make up for it by sleeping during the day...

That's right. An upright object passes through the lens (convex lens) of the eye to form an inverted and shrunken image in the retina, and after brain processing, it corrects it to produce an upright image.

The latter is correct, because the lens of the eye is equivalent to a convex lens, and the convex lens is like an inverted image, so the light from the object passes through the lens and then on the retina is inverted.

Wrong, the retina is a reverse image even if it is upside down, and it is a positive image after being processed by the brain.

Right, but it's not the retina upside down, it's the retinal imaging that is upside down.

Children often take things upside down, because the brain has not yet adapted, and in fact, the image in the human eye is upside down, because the optics of the inverted image are relatively simple together, so some of the early optical lenses are also upside down.

No, retinal imaging is upside down, and it is processed by the brain to become a positive thought.

It's not that the retina is upside down, it's that the retinal image is upside down, but the object seen after being processed by the brain is orthogonal.