The benefits of the eyes, what are the effects of the eyes?

Eye: The eye is the most important organ of the human senses, and about 80% of the knowledge in the brain is acquired through the eye. Reading and reading, looking at pictures, looking at people, enjoying beautiful scenery, etc.—all of these things need to be done with the eyes.

The eye can distinguish between different colors and the brightness of light, and convert this information into nerve signals that are transmitted to the brain.

The human eye is the benchmark for the magnification of the telescope, that is, the magnification is 1, and the aperture is the size of the pupil of the human eye, which changes with the change of light intensity, generally fluctuating between 2 and 7 mm.

Imaging Principle:

The eye changes the focal length of the lens by adjusting the degree of curvature of the lens to obtain an inverted, reduced image. The farthest point that the eye can see is called the adjusted far point, and the far point that the eye can see is at a very far distance; The closest point that the eye can see is called the adjustment point, and the distance between the two points is called the adjustment range. The near point of the normal eye is about 10 cm from the eye.

Chang next to it. <>Ways to protect your eyes:

Increasing the time spent outdoors as much as possible can prevent the occurrence of myopia;

2. Reading, TV, computer or mobile phone, 30 minutes of eye time should be rested for about 10 minutes;

3. Maintain a good reading distance;

4. Maintain a good sitting posture when reading and writing, do not lie down to read, and do not read in a rocking car;

Fifth, the indoor lighting should be appropriate, not too bright and not too dark;

6. Regularly go to the ophthalmology department for eye examinations.

1. The eye is the most important organ of the human senses, and about 80% of the knowledge in the brain is obtained through the eye. Eyes are needed to read and read, to read and read, to look at pictures and paintings, to see people, to enjoy beautiful scenery, etc. The eye can distinguish between different colors and brightness of light and convert this information into neural signals that are transmitted to the brain.

2. The human eye is approximately spherical and located in the orbit. The average anteroposterior diameter of a normal adult is 24 mm, and the average vertical diameter is 23 mm. The anterior end protrudes 12 14 mm outside the orbit and is protected by the lidal rock cover segment.

The eyeball includes tissues such as the wall of the eyeball, the intraocular cavity and contents, nerves, and blood vessels.

The eye can be said to be condescending, and it can see many things, such as: watching the scenery. Watch TV.

You can see things that the other four senses can't see. Some people will be proud of their eyes because they are big and beautiful, while others will have small and ugly eyes. But no matter whether it's beautiful or ugly, it has the same effect.

The nose is no worse than the eyes, because it can smell whether the smell of something is fragrant or smelly, sour or sweet, bitter or sweet, in short, it is all about cooking and seasoning, and it is all about breathing, without it, we can't live, but some people say that the mouth can also breathe. The mouth is OK but you can't smell it.

However, the mouth also has its function is to eat and drink water, if there is no mouth, people will also die, because food can not reach the stomach without mouth, until the stomach is covered with boiling liquid people will be starved to death, if you do not drink water with macroscopic things, people will also die of thirst. So the role of the mouth is no less than that of the eyes and nose.

The ear is also indispensable in the five senses of people, people listen to **, listen to the recording also depends on it, without it can not hear the sound, and if you can't hear the sound, you will be unhappy. In ancient times, people could put their ears to the ground and listen to how many soldiers and horses the enemy had?

The role of the eyebrows is not as good as the other four senses, but you can't do without it, people will become ugly without it, it is a partner with the eyes, without it the eyes will not be beautiful, without it bacteria will take advantage of the void, you will get sick.

The eye is an organ of the human body, not only in humans, but also in animals, and some animals even have many eyes, which we call "compound eyes". What do those eyes do to us? Let's take a look at the knowledge about eyes!

The eye is an organ that can perceive light. The simplest eye structures can detect the light and darkness of the surrounding environment, and the more complex eye structures can provide vision. Compound eyes, usually found in arthropods, such as insects, are usually composed of many simple small eye surfaces and produce a single image (not as many images as Kansan usually imagines).

In many vertebrates and some mollusks, the eye imprints light by projecting light onto the light-sensitive retina, where light is received and converted into signals that are transmitted to the brain through the optic nerve. Usually the eye is spherical and filled with a clear, gel-like auspicious substance, with a focused lens, and usually an iris that controls the amount of light entering the eye.

In addition to this, the eye can also be detoxified, and the tear glands that produce tears are located in the lacrimal gland fossa in the frontal bone above the orbit. Tears, some antibacterial and antiviral agents, repel bacteria from community computers, shopping carts, public washbasins, and all kinds of bacteria that parasitize and multiply. Tears contain lysozyme, a fluid that can be used as a class A fear dream for bacteria, because lysozyme kills 90 to 95 percent of the total bacteria in just 5 to 10 minutes.

However, it is best not to cry for more than 15 minutes, because the gastrointestinal function is extremely sensitive to emotions, and sadness can cause the movement of the stomach to slow down, affect appetite, and often this can lead to stomach problems.