How does a computer (laptop) affect vision?
In today's world, people have to spend more time in front of screens. This is not only a computer workflow, but also everyday life: a TV, a telephone.
Many people with prolonged contact with these devices complain of eye fatigue, sometimes dryness and burning, short-term "dulling" of vision and a gradual decrease in its sharpness over a long period of time.
These complaints do not arise from scratch. Any doctor, especially an ophthalmologist, will confirm that a long pastime behind monitors without eye gymnastics will lead to a gradual deterioration in eye health.
The thing is that the human eye is very tense from the constant bright glow, which is accompanied by electromagnetic radiation and rays of the blue and violet spectrum . If you do not rest from work periodically, do not do gymnastics or do not defend yourself with special glasses, then visual acuity will begin to fall.
Short-term but very unpleasant headaches in the frontal part, general feeling of weakness, burning sensation in the eyeball, increased intracranial pressure may also appear from “computer fatigue” .
But do not be scared of the above facts. One way or another, almost everyone is constantly faced with similar problems, and nothing critical happens. But science does not stand still, for a long time there is a special coating for glasses that protects the eye from most of the harmful radiation.
The use of glasses for the computer
Glasses for a computer are distinguished by a special spraying on the lenses, which does not pass harmful electromagnetic and ultraviolet radiation. The use of such glasses is obvious - in them the eye practically does not get tired, receives a minimum of harmful electromagnetic radiation on the retina. And this is a very modern solution to all problems.
Not every person is ready to constantly be distracted from working at a computer for the sake of some kind of gymnastics. Sometimes people forget, someone just does not know about the need for this, and someone has a trite lack of time and desire to do this. However, one must take care of one's own health.
Types of Computer Glasses
At the moment there are several types of computer glasses, they perform various functions. To make the right choice, you need to understand their classification, consider the main differences, advantages and disadvantages.
Monofocal
This option is only suitable for people who have good eyesight, that is, there is no myopia or farsightedness . With such glasses, you can work on the computer for a long time without stress for the eyes. The advantage is that the entire optical zone is designed to work in front of monitors. This is the simplest option that can be found in optics, so the price will not “bite” much either.
Bifocal
An interesting, more complex option for those who work with a computer and, for example, paper records. The lens is configured in such a way that its upper part is designed to work in front of the monitor, and the lower part is for viewing close objects. It seems that in each lens below, another lens is mounted, smaller in size.
Three focus
As the name implies, in the lenses of these computer glasses there are three tricks: in the center at the middle distance, down to the near, and up to the far. It is very convenient for working in the office, the eye feels comfortable even with prolonged use. Sometimes this type of glasses is confused with varifocal, which is described below.
Progressive (varifocal)
This type of glasses differs in that the lenses combine several optical zones (as in the case of bifocal, where there are two zones) that perform different functions. Outwardly, they are similar to conventional, monofocal optics, however, the purpose is completely different.
The central “corridor” of the lens helps to work safely in front of the screens, the upper sections help the eye to focus on distant objects, and the lower ones to consider close objects. Peripheral zones are also involved, unlike three-focus lenses. This option is the most comfortable, the eye feels as relaxed and natural as possible.
Also, such lenses help the eye better perceive the color spectrum. However, the disadvantages of such computer glasses include the difficulty in manufacturing, which implies a very impressive price.
How to choose glasses for the computer?
The selection of optics is always a very complex and responsible process. Glasses must be selected individually individually, according to one’s own eye, for this it is strongly recommended to contact a professional ophthalmologist.
Important! When the issue with diopters was resolved, the specialist issued relevant recommendations, you can begin to choose the type of glasses, their appearance.
If the customer’s vision is in perfect condition, then in order to save money, you can pick up ready-made computer glasses in optics. They are always available per unit, they will cost slightly less than ordering. However, if you do not like any styles, it is worth making an individual order . Below are some tips for choosing the right computer glasses.
As for the choice of frames - it is worth stopping at a reliable and simple material. Strong plastic will be an excellent option in front of thin metal . Be sure to know your vision in diopters, for this you need to check with an ophthalmologist in the nearest clinic or find an optician who has a private specialist, he will also help in choosing glasses.
Advice! It is also worth consulting a question regarding your occupation. If you primarily work with texts on a computer, it is better to order a lens that increases contrast. If the work is related to color reproduction, then the choice should fall on the corresponding points .
Tips for working with computer glasses
Professional ophthalmologists agree that even with computer glasses, the eye needs rest. Try to be distracted from work for several minutes every hour, look into the distance, do simple gymnastics: rotate the eyeball in different directions, violent blinking with a sharp opening of the eyelids, frequent blinking.
You can massage your eyes a little, only very carefully! After this procedure, the muscles of the eye will flex slightly, the eye itself will rest.
As for diopters, if a person does not have perfect vision, then you must definitely choose glasses for yourself in the direction of an ophthalmologist. Lenses should be selected so that the clarity of the image is maximum at all distances.
Otherwise, the eye will overexert, which may impair vision.
As you can see, eye care is needed - only then vision is maintained. However, if you make it a habit to do eye gymnastics, as well as think about protecting your eyesight with computer glasses, visiting an ophthalmologist will become extremely preventative.
