Tell me, do you know the feeling when your eyes start to hurt or watery after a long time working at the computer? Or maybe you felt the deterioration of vision, which disappeared after rest? If yes, then let’s figure out together why this is happening, how to get rid of it and, most interestingly, whether glasses for working at a computer help preserve vision.
What can happen to the eyes
Ophthalmologists classify problems into two types – ocular and visual. The following signs indicate problems with the organ of vision (eye):
the appearance of a strong burning sensation;
the appearance of a feeling that a foreign body has got under the eyelid;
the presence of painful sensations in the area of the eye sockets and forehead, as well as when the pupils move;
with reddening of the white of the eyes.
Visual problems are characterized as follows:
visual acuity is significantly reduced, as if everything starts to float before the eyes;
it becomes more difficult for you to focus on objects in the distance and near one by one;
the appearance of fatigue in the eyes with short-term stress;
objects begin to double at you.
It is visual problems, if you do not take any action, that, over time, can completely spoil your vision. If you ignore them, then in the future you will not avoid wearing glasses.
People who sit in front of a computer monitor for a long time, especially late hours without additional lighting, fall into the risk zone. Especially in order to avoid possible problems, special glasses were invented to protect the eyes.
The retina of our eyes perceives everything, including the shortwave violet-blue spectrum of light. It is he who is most harmful to vision. The fact is that the pupil is able to receive an electromagnetic wave with a frequency of 380 nm (nanometers) to 780 nm. It is from purplish blue to deep red. The violet-blue waves are shorter and therefore have a greater effect on the retina.
The device of special glasses and the principle of operation
Safety glasses are a necessary attribute if you look at the monitor for a long time. They do not have diopters, that is, they do not correct vision, but serve as a kind of barrier. How Glasses Work – Coated glass filters out harmful visible electromagnetic radiation. As a result, you get a crisp and clear picture, but without negative waves.
On the most ordinary examination, you may notice that lenses are very rarely made simple, that is, colorless. This type of optics is equipped with a special coating in violet, green or yellow colors. All of this is necessary to cut off the violet-blue spectrum, as a result of which you begin to see the monitor more clearly. At the same time, the retina of your eyes does not get tired at all, and the color rendition does not deteriorate in any way.
Today, almost all glasses for working at a computer are additionally covered with a special anti-reflective layer. This helps not to notice the glare that comes from the monitor or completely foreign objects – glass windows, dishes, and so on.
If you’ve read the article and are wondering if you need glasses to work at a computer, then take a look at the approximate prices. On average, the price for fairly good glasses fluctuates in the range of 2000-2500 rubles. In the salon, you will be offered a choice of frames, as well as issued a warranty card. Yes, yes, and the guarantee will even be written out.