Why Someone Doesn t Blink Why Do People Blink

A normal person's eyelids blink about 15 times per minute. Blinking is good for the eyes: first of all, it acts as a cleansing and moisturizing eyeball.

Secondly, blinking can play a role in protecting the eyes. When sand or flying insects approach the eyes, the eyelids will blink naturally, which blocks the sand and insects. When your eyes are tired, you blink a few times and feel more comfortable, because the moment you blink, the light is interrupted, which gives your eyes a short rest.

Some people are particularly fond of blinking, which causes their eyes to be overworked, which affects their vision. The main reason for this problem is: due to some eye diseases, in order to reduce the uncomfortable feeling, the eyes have to speed up the frequency of blinking, and after a long time, they will develop the habit of blinking, and when the eye disease is cured, they still have the problem of blinking.

Blinking is not a disease, if there is no uncomfortable feeling, there is no need to **, just restraint, try to minimize the number of blinks, and it will get better after a while. If you have symptoms such as photophobia, tearing, and vision loss while blinking, you should go to the hospital for diagnosis and treatment in time.

There's no one who doesn't blink, it's just that it's a long time in between.

It's actually a physiological need. When blinking, the tears can evenly moisten the cornea and conjunctiva, so that the eyeball will not dry out, maintain the luster of the cornea, and remove dust and bacteria from the conjunctival sac. If you don't blink, the tear film on the eyeball will evaporate quickly, and we will feel that the eyes are dry and uncomfortable, stinging, and watery.

So blinking is actually a protective effect.

Why do people need to blink, and what happens if they don't blink for a long time?

The reasons why people blink are as follows:

1. It can play a role in cleaning and moisturizing the eyes. When you blink, tears wash away the fine dust on the surface of your eyeball.

2. It can play a role in protecting the eyes. It is a self-protective ability to respond to the outside world.

3. It can play a role in relieving fatigue. In the blink of an eye, the light is interrupted, giving the eyes a brief rest.

A human blink is done to keep the eyeball moist and clean, and whenever it blinks, it will bring three different fluids to the eyeball.

1 Tears, secreted by the lacrimal glands.

2 Lubricating oil, secreted by the fat glands between the eyelashes, prevents water from evaporating too quickly.3 Mucus helps the above two liquids to adsorb on the eyeballs.

Together, these three liquids act as cleansing, and in addition, the mechanical movement of blinking itself can prevent some dust and other substances from entering the eyeball.

In addition, people who are more focused will blink less, which is why we have a very "astringent" feeling when we look at the computer very seriously, so it is because we "forget" to blink.

Every one of us blinks constantly, and a normal person blinks 10-20 times a minute, and each blink lasts about a second. Excluding sleep time, a person blinks about 10,000 times a day, and the busiest thing in the human body is the levator muscle. The interval between each blink is only 4-5 seconds.

Don't underestimate the simple and short-lived action of blinking, it can be very useful. When blinking, tears are evenly spread over the cornea and conjunctiva, making them moist and free from dryness. Blinking also stimulates the secretion of tears, which is why you automatically close your eyes when you feel dry.

In addition, blinking an eye is like rubbing a "glass window", so that the eyes are always in a clean and bright state. When a flying insect or foreign object suddenly flies towards the eye, the eye quickly blinks to prevent the flying insect from flying into the eye and prevent or cushion the damage to the eyeball. Closing your eyelids when blinking prevents light from entering your eyes continuously, and the retina under your eyes gives you a short break.

Don't look at the blink as "instantaneous", add it up, there is 1 hour a day. In other words, we have to be "blind" for one hour a day, but subjectively we don't feel "darkness". Some scientists believe that when the retina rests for a short time, it is the optic nerve of the brain that transmits the information transmitted by the receptors of retinal nerve cells last time, and it is too late to analyze the next visual impulse that is sent to the nerve center, so we do not notice that the eyes are darkened.

Blinking weakens the strong light that hits the bottom of the eye, similar to the effect of curtains to block sunlight. It is conceivable that if the eyes are always open and the light is always shining on the retina, then it will not take a few years for our eyes to become vision loss, or even fatigue to the point of blindness. Blinking relaxes the levator palpebrae muscles, and if you don't move, you will feel sore and swollen eyes.

Blinking can help the eye repel foreign objects such as dust particles. However, frequent blinking, especially active blinking, may be a sign of illness. In medicine, too much blinking is called blepharospasm.

Diseases such as trichiasis, trachoma, and sharp eyes can cause frequent blinking, and should be checked by a doctor.

Every 4-5 seconds, we blink. Why do people keep blinking? If the eyes are the windows of the soul, then when people blink, the retina of the occupants of the window can get a moment of rest.

If the retina works all the time, it will be exhausted in a few years, and our vision will deteriorate. Since the eyes are windows, it is inevitable that they will be stained with dust, and blinking can encourage the tear glands to secrete tears, and at the same time, the tears can be evenly spread on the surface of the eyeball, washing away the dust falling in the eyes, so that the eyes are kept clean and moist. It can be seen that the benefits of blinking are very many, and we should consciously blink more.