Pay attention to eye protection to prevent eye diseases
Watching TV has become an indispensable part of people’s lives. Some people watch it for a few hours, especially the elderly have nothing to do, do not like activities, and prefer to spend time sitting in front of the TV.
As a result, dizziness and bloating caused fatigue and weakness, and the medical profession called it “television disease”.
Watching TV for too long is also bad for the eyes. Some people have done experiments. If you watch TV continuously for 4 to 5 hours, your vision will temporarily decrease by 30%, and you can recover after you restart.
If you continue to watch TV continuously, your vision will not be restored and you will have long-term vision loss.
Especially when watching a color TV, due to the large consumption of rhodopsin in the cylindrical cells on the retina, vision decline and recovery.
Watching TV after drinking is more detrimental to the eyes, because alcohol can hurt the eyes, make the eyes congested, and the optic nerve atrophy, which can seriously lead to blindness.
Watching TV after drinking is equivalent to pouring oil on the fire, which is harmful to vision.
Therefore, it is not advisable to watch TV after drinking, and it is not advisable for most people to watch TV for too long.
Everyone can’t live without the TV and the computer when watching the TV with the lights off. The TV and computers all need to have high concentration of eyes. As time goes by, many people have different degrees of eye fatigue, especially among white-collar workers who deal with computers all day.More than 90% have different degrees of eye fatigue symptoms.
Some people like to turn off the lights next to them when watching TV or using a computer, leaving only the bright light on the screen.
Ophthalmologists point out that this is wrong. At this time, the light alignment will be particularly high, and the eyes are particularly prone to fatigue. Over time, it will affect vision and even damage the eyes.
People who watch TV continuously change channels know that the continuous eye fatigue caused by watching TV continuously affects vision.
However, according to a recent survey by researchers, the coefficient of eye damage caused by changing channels is constant compared with the proportion of long-term watching TV.
The moment you watch a TV change, it is the time that stimulates your eyes the most, because most TVs have a black screen and suddenly brighten at the moment of changing the channel. At this time, the light suddenly changes, causing some eye irritation.Too much can easily cause eye fatigue.
Researchers point out that it is best to close your eyes before watching TV, or to blink a few more times after changing channels, because this can stimulate the secretion of the lacrimal glands of the eyes or exercise the muscles around the eyes to avoid eye fatigue.
In addition, watching TV for more than half an hour, it is best to look into the distance and let the eyes rest.
Watching TV on a tourist car Many TVs now have TVs, as long as tourists pass the boring time during the ride, the TV is generally installed in the front of the car, and the car will play some TV programs or videos during the drive.
It stands to reason that this is a manifestation of quality service.
However, when people watch TV for hours, many people will experience swelling and dryness of their eyes, and even dizziness, nausea, and vomiting.
Due to car vibrations and limited car space, only 14-inch TVs can be installed in the car.
However, most of the coaches are long, and the distance and angle of watching TV in the car are not ideal.
A more scientific argument is that when watching TV, the distance between the person and the TV should be 4 diagonal of the screen?
6 times, the angle of looking at left and right of the screen is less than 45 degrees.
However, in the coach, most passengers in the front and middle positions are only 0 from the TV.
At 5 meters, the viewing angle of the passengers on the front and back seats is less than 30 degrees, while the passengers sitting in the back row are too far away to see the image.
Watching TV under improper distances and angles can easily hurt your eyes.
And because the car constantly vibrates while driving, the TV image is blurry, and over time, eye swelling and pain, blurred vision, even uprightness, chest tightness, nausea and other discomforts, so you should watch less TV on the coach.
Watching TV on the bus Nowadays, buses in many cities can be equipped with mobile TV equipment. During the boring journey, rich TV programs have become the only pastime for many passengers.
However, most people will stare at the TV screen for a long time while riding a car, which is actually unscientific.
When the human eye looks at a relatively fixed distance object, the contraction and extension of the ciliary muscle can be kept relatively stable, and the eye will not feel tired in a short time.
On buses, penetrating bumps and shakes often occur, and the TV screen will tremble along with the carriage. In order to see the images and subtitles on the screen, the ciliary muscles are forced to adjust continuously, which is easy to produce vision.fatigue.
In addition, due to the limited space on the bus, when there are many people on the bus, some people will stand in front of the TV, and some people are far away. In order to see the image clearly, the adjustment of the eyes is often in a state of tension; there are people standing and the screenIf you look at a place with a large deflection angle, it is more likely to cause visual fatigue. Some people just sit under the TV and look up at the TV for a long time. In addition to hurting the eyes, the muscles will also feel sore and tired.
Beyond these improper practices, it is easy for people to have uncomfortable symptoms such as dry eyes, soreness, and pain, which will aggravate myopia and even induce acute glaucoma attacks.
Therefore, on a bus, it is best not to watch the TV screen continuously.
You can look for a while, then close your eyes and rest for a while, or look at the view from the car window to relax your eyes.
How do I protect my eyes when watching TV?
Location and distance of the TV: The TV should be placed in a corner with soft light, and the height should be appropriate. It should not be too high or low. The center of the TV’s screen should be at the same level with the eyes or lower.
When watching TV, the eye muscles are in a tense state. The distance between the eye and the screen should be appropriate. The distance is too close, it looks blurry and easily causes visual fatigue, and the distance is too long, it is difficult to see clearly, and you cannot watch TV lying down.
In fact, the distance between the TV and people should be 4 diagonal of the screen?
6 times, you can also use the replacement method to measure, straighten one hand forward, palms horizontally, close one eye, if the palms just cover the TV screen, this distance is more suitable.
In addition, when watching TV, it is best to sit directly in front of the screen. If you sit on the side, the viewing angle shift is less than 45 degrees.
The brightness of the TV and the brightness of the room: The height of the TV is too large, the brightness of the light is uneven, the vision is concentrated, and it is easy to cause eye fatigue.
The contrast is too small, the color of the image is not clear, and it is not easy to see clearly.
Some people like to watch TV like to turn off the lights in the room, so that the brightness of the screen and the surrounding dark environment form a sharp contrast, staring at it, the eyes are very uncomfortable.
Conversely, if the light in the room is bright, the image on the screen will be dim and unreadable.
Therefore, when watching TV, the light in the room should not be too dark or too bright. You can turn on a small soft lamp or a red light bulb in the room so that your eyes will not easily fatigue.
Control TV time: Watch TV for too long, especially for teenagers, with 1?
2 hours is appropriate.
During the watching process, close the eyes while taking a break between the program or the advertising program, or take a short look at the distance, so as not to over-fatigue the eyes and affect eyesight.
In order to protect the eyes, usually eat more vegetables and fruits, such as carrots, bean sprouts, oranges, mandarin oranges, red dates, etc., have a certain effect on eye protection.