The TV surrounds us It is injuring us also invisible
Brief content:The kind of the TV may be various in style now, people can accept to TV information when nearly going everywhere, home TVs, public transit TVs, subway TV, building TV, the taxi TV ......The TV is rounded around us, with injuring our health virtually too.
Watching TV has already become the essential content in a lot of people life now, it is several hours that some people see, especially the elderly are idle, do not love the activity, like sitting in front of the television passing the time even more. It is dizzy to make, tired and unable, the medical circle is called " TV disease " .
The kind of the TV may be various in style now, people can accept to TV information when nearly going everywhere, home TVs, public transit TVs, subway TV, building TV, the taxi TV ......The TV is rounded around us, with injuring our health virtually too.
Watch TV, pass long someone, make, test, one watch TV for 4 to 5 hours continuously, eyesight will fail 30% temporarily, could resume after after a while. If watch TV continuously for a long time, eyesight can not be resumed, form long-term eyesight and fail. Especially see the color TV, will consume rhodopsin in cylinder cell on the retina in a large amount, eyesight fails faster.
Watching TV after drinking actually can damage eyes because of the wine, made eyes congested, optic atrophy, the serious one can result in losing one's sight. It means adding fuel to the flames to watch TV after drinking, damage eyesight. So, unsuitable to watch TV after drinking, time is too long that common people should not watch TV either.
People are due to TV and computer every day, and the TV computers all need eyes to be highly centralized, as time goes by, many people presented the tired symptom of eyes at various degrees, in the white collar crowd who especially has dealings with computer all day, more than 90% have tired symptom of eyes at various degrees.
It if you can't it if you can't turn off the light, watch TVs that there is be some people, watch TV at ordinary times or by computer at like not imprisoning nearby lighting, only have a light given out on screens left. The ophthalmology expert points out, it is incorrect like this, light contrast ratio will be very high at this moment, eyes are very apt to feel tired, it is long, will influence eyesight to even damage eyes.
Watch TV and frequently change people of Taiwan to all know, it will make eyes tired to watch TV for a long time, influence eyesight. However, according to a newest investigation of researcher, compared with watching TV for a long time, frequently change the injury to eyes of the platform bigger. Watch TV, change twinkling of an eye in platform, to stimulate loud a when most to eyes, at the moment of changing the platform because of most TVs, will appear black to reject and become bright situation suddenly, line change suddenly this times, will lead to the fact sure stimulus to eyes, it is too frequent to change the platform, cause eyes to be tired more easily.
Researchers point out, watching TV changes it before the platform and had better close eyes first, or blinked eye several times more after changing one, because can stimulate the secretion of lachrymal gland of eyes or temper the muscles around eyes in this way, avoid eyes are tired. In addition, it exceeds half an hour to watch TV, had better look at the distant place, let eyes have a rest.
Have TVs to watch TV on a lot of tourist coaches now on the tourist coach, it is convenient for visitor to send boring time while by bus, the TVs are generally all installed in the car, the car will broadcast some TV programmes or video in the course of going. Normally, this is manifestation of good service. However, as people are as long as several hours to watch TV, a lot of people will present the eyes and swell, dry and astringent, bad symptom of will even present giddy, nausea, vomit ing etc..
Because the car goes and shakes and the automobile body space is limited,etc., can only install the TV with 14 -inch screen in the car. It is most truck height of tourist coach, it is all unsatisfactory to watch distance and angle of the TV,etc. on the car. More scientific statement thinks, while watching TV, the distance between people and TV should be 4-6 times that of screen diagonals, the angle looked in the screen two sideways should not be below 45 degrees. But in the tourist coach, passengers in the position are mostly 0.5 meters from the television in the middle in the front, preceding the intersection of both sides and passenger of seat watch angle fewer than 30 at all, sit passenger in the back row because the distance is too far, do not basically see the picture clearly. In watch TV from the intersection of angle and improper terms, it is apt to injure eyes. And because the car shakes while going ceaselessly, the smudgy television image, as time goes by, will present bloated pain of eyes, eyesight is fuzzy, even it is uncomfortable to have a headache, uncomfortable in chest, disgusting etc., so should watch TV on the tourist coach little.
Watch TV now on the bus, all contain and move the TV apparatus on the buses of a lot of cities, go by bus in the road in a uninteresting one, the abundant TV programme has become much passenger's only pastimes. However, most people will stare at television screen for a long time while taking a bus, it is not scientific to in fact do it in this way.
The human eye, while watching the object of relatively fixed distance, the shrink of the ciliary muscle is with can keep relatively stable to upholding, eyes will not feel tired within short time. On the bus, the ones that will often present bigger are jolt and rocking, the television screen will quiver with the carriage, in order to see picture and subtitle on the screen clearly, the ciliary muscle will be forced to regulate ceaselessly soon, it is apt to produce visual fatigue.
In addition, because space limited at the bus, when there are many people on the car, some people can stand before TV, some people are a good distance away, in order to see the picture clearly, the regulation of eyes is in tense state frequently; Somebody stand in lean towards the intersection of oblique angle and degrees of loud place, watch with screen, prone to visual fatigue like this; Some people just sit under TV, will face upward the head watch TV, it is long, except having injury on eyes, shank muscles will experience acid pain, tired too.
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