How to check vision at home. Simple Tips

The twinkle of time - people almost sit for days outside the screens of monitors. From overexertion of vision, long directed almost to one point, they begin to notice that it becomes fuzzy. And when reading the book, there is a desire to push it away from the eyes.

As a rule, in case of problems with vision, they are first searched on the Internet, how to check vision at home. Checking the visual acuity is an assessment of your ability to distinguish individual details. Visual acuity is checked at a great distance, and separately, after 40 years, check the vision near. With the standard procedure for checking the eyes of an ophthalmologist is familiar to any citizen.

How to check vision at home? You can use various tests from the Internet or print a familiar table to all eyes and hang it on the wall, from 5 meters, try to read each letter separately in 12 rows. Visual acuity from 0.1 - the top row and up to 2.0 - the bottom row. If you can read the 10th line, then the vision is normal. Otherwise, correction is necessary.

There is another option, how to check vision at home. It is necessary to look from 3 meters to letters "E" painted in different directions with sides of lines of 0.5 cm. A person whose vision is normal will correctly determine their direction: bottom, top, left or right.

All home methods - this is an approximate test of visual acuity, because for carrying out such a study, the contrast of visible signs and illumination is still important. Therefore, without asking yourself how to check your eyesight at home, it is better to go to an ophthalmologist.

What vision is normal?

This visual acuity, compared with the indicators of normal vision of people who can read the letters of the bottom rows of the table from a distance of 6 meters. 6/6 or 20/20 in feet is an indicator of normal visual acuity. The first number is the distance from which the vision is checked. And the second number is the distance from which normally seeing people can read the same line on the table.

If the second number is less than the first number - vision is better than normal, if more, then worse than normal. Indicator 20/10 (6/3) means that a person sees at a distance of 6 meters, and a person whose eyesight is within normal limits will read this line from 3 meters. More complete information, which vision is normal, can be obtained only from an ophthalmologist.

At the user, looking at the screen of the monitor, muscles of eyes remain motionless. By nature, they are dynamic. Duration of work and increased concentration - this is an additional burden on the eyesight. In addition, the screen as a light source is an instrument of active contrast, while a sheet of plain paper is a passive contrast. On the screen, the image is dynamically updated at a low frequency, which causes flicker. As a result, the eyes get tired, headaches, irritability, nervous tension and stress occur. The most important side effect of the computer is its ability to lead to the development of myopia.

Secure from this can a high resolution of the monitor, and therefore a more accurate and clear image. In this case, the fatigue of the organ of vision decreases . Periodically, as a preventive measure, remove your eyes from the monitor to the side, and also do simple exercises of gymnastics for the eyes.

The consequence of continuous work on the computer is "dry eye syndrome", which means the drying of the eye surface. For prevention, the following exercise is recommended: tighten your eyes and then open your eyes after 2-3 seconds. Repeat 10-20 times. Do not forget that the computer and the vision are very much interconnected.

Do not be lazy, give each hour only 2-3 minutes to these simple exercises, and this will help to keep your eyesight. Do not forget that through the organ of vision we receive 90% of all information from the outside world.