At what distance do you watch TV? Can children watch TV?

To date, the most common TVs on the shelves of stores are the traditional, projection, with an electron-beam tube, plasma and liquid crystal. The last two models do not have a flickering screen and they are not sources of harmful radiation. The most popular among current consumers have found TVs with a liquid crystal screen. First of all, many believe that these models are the most stylish. Secondly, such models fit perfectly into the interior of any apartment. Thirdly, TVs with a similar kinescope are the most safe and energy-intensive.

Dependence of distance from panel size

So, at what distance do you watch TV? The safest distance is four diagonals (or approximately two meters). If you have three TV sets at home, they will not present any danger, but on one condition - their screens should be liquid crystal. Western experts, having studied the requirements for the rooms in which the installation of plasma panels is planned, came to a unanimous opinion. It says that the safe distance from the TV to the eyes must necessarily be taken into account by buyers. This applies to all models, whether they are tube-type or liquid-crystal.

How else can you determine at what distance do you watch TV? For example, the diagonal of your home device is forty-two inches. In this situation, the recommended distance from the TV to the eyes is at least three meters. This means that the area of the room should be more than fourteen squares. If you are still in the process of purchasing a particular model, do not forget to pay attention first of all to the size of the panel. This choice depends on how far to watch TV. The size of the screen is usually determined by the size of the kinescope. If you have already bought a certain model and wish to independently measure the harmless distance for viewing the programs and movies, then the rule of five diagonals will serve as an excellent guide. Also recently popular are projectors, which make it possible to equip the home theater with the safest adjustable screen.

A simple guide to installing a TV

The center of the image should be about seventy centimeters high above the floor. The newest models practically do not heat up, nevertheless it is not necessary to include nearby any heating devices. The direct sunlight on the TV screen and its housing is not welcome.

Types of screens

There are convex and flat kinescopes. The first kind of sign to us for a long time. On the surface of such a screen there is a rounded area. This kinescope reflects light that falls on the panel. Because of this, eyes are quickly tired, and the frequency of the image decreases. Flat screens in this regard are real saviors. They reduce the reflection coefficient, due to which the light does not fall directly into the eyes of the viewer.

The influence of the TV on the child's vision

The visual analyzer of children fully ripens to three to five years. In this age period, the visual system is very vulnerable and is easily affected by various harmful factors. The main role in its proper development is played by all kinds of visual loads. They can be referred to as drawing, reading, or watching the programs. Can children watch TV?

The image from the blue screen is projected onto the retina. In order to clearly see what is happening on it, the child has to strain the special structures inside the eye. This action occurs reflexively, that is, it is absolutely independent of the child's consciousness. When watching TV, the child's eyes are in constant tension. If such loads are long, excessive and do not correspond to the age of the baby, they can cause the development of myopia.

How much TV can you watch a child?

Unfortunately, modern parents can not completely exclude watching cartoons and various programs from the lives of their children, so you need to look for a rational compromise.

Boys and girls under two or three years old do not recommend watching television at all. The cause is both the burden on the eyes, and the effect of the transmissions on the nervous system, which often lead to unnecessary excitement of children. Special impact is provided by commercials. Undoubtedly, they attract kids quickly changing and bright images. But the harm in this case is much more than good.

The average duration of viewing programs for children over three years of age per day should not exceed thirty minutes.

A child under seven can watch TV for no more than an hour. At the age of thirteen, children can give transfers not more than one hundred and twenty minutes a day. It should be noted that the continuous load in this case should not exceed one and a half hours.

Can children watch TV in the dark? In the evening it is necessary to resort to additional lighting in the room. Otherwise, an unfavorable condition is created for the operation of the visual system, which leads to rapid visual fatigue. All this has a negative impact on the general condition of children.

At what distance do you watch TV for your child? The distance in this case should be from three meters, and the screen size - twenty-one inches or more. As the diagonal of the panel increases, the distance for viewing the programs increases proportionally.

A liquid crystal TV almost does not carry any load on the eyesight. When viewing it, the most important harmful factor for the eyes is a prolonged visual stress.

Precautionary measures

Parents should remember that vision in children decreases gradually, and most often they themselves do not notice this deterioration. Because of this, it is necessary to show your child to an ophthalmologist at least once a year. This will identify the possible pathology in the first stages and in time to take the path of recovery.