How to check eyesight at home. Simple tips

Spirit of the times - people almost a day to sit behind the screens of monitors. Surge of view, long directed almost one point, you start to notice it getting fuzzy. And when reading the book there is a desire to push it away from the eyes.

Typically in case of problems with vision in the beginning the Internet searching for how to check eyesight at home. Checking visual acuity is an assessment of your ability to distinguish separate details. Visual acuity test at a distance, but separately, after 40 years, check the near vision. The standard procedure of an eye examination by an ophthalmologist familiar to any citizen.

How to check eyesight at home? You can use various tests from the Internet, or to print the familiar table of check of sight, and, hanging it on the wall, from 5 feet to try each eye separately read letters in 12 rows. Sharpness  view 0.1 the upper row and up to 2.0 - the bottom row. If you can read the 10th line, the vision is normal. Otherwise, correction is required.

There is another option how to check eyesight at home. It is necessary to look from 3 meters to drawn in different directions to the letter “E” with sides of 0.5 cm lines of the Man whose vision  a normal, correct will determine their direction: bottom, top, left or right.

All home methods - this is an approximate test of visual acuity, since this study is still an important contrast of the visible signs and lighting. So, not wondering how to check eyesight at home, it is better to go to an ophthalmologist.

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Vision considered normal?

This is visual acuity, and compare with the indicators of normal people who can read lowercase letters table rows with a distance of 6 meters. 6/6 or 20/20 in feet – an indicator of normal visual acuity. The first number is the distance at which to check eyesight. And the second number is the distance from which a normally sighted people can read the same line on the table.

If the second number is less than the first number vision better than normal, and if not, worse than normal. Figure 20/10 (6/3) means that a person sees at a distance of 6 meters, and the man whose vision indicators are within normal limits, read this line 3 feet away. More information what is considered normal vision, can be learned only by an ophthalmologist.

The user looking at the monitor screen, the muscles of the eye remain stationary. By nature they are characterized by dynamism. The duration of the work and enhanced focus is an additional load on vision. In addition, the screen as the light source, is the device active contrast, while a sheet of plain  paper is a passive contrast. The screen image is dynamically updated with low frequency, which causes flickering.  as a result my eyes get tired, get headaches, irritability, nervous tension and stress. The most important side effect of the computer is its ability to cause the development of myopia.

To Protect from this high resolution monitor, and hence more accurate and clear image. In this case, reducing the fatigue of the organ of vision. Periodically as preventive maintenance ... look away from the monitor to the side and do simple exercises for the eyes.

The Result of continuous work on a computer is ‘dry eye syndrome”, which means drying the surface of the eye. For prevention we recommend the following exercise: strongly zazhmurte and open your eyes after 2-3 seconds. Repeat 10-20 times. Don't forget that the computer and vision are very much interrelated.

Don't be lazy, take every hour only 2-3 minutes these simple exercises and this will help to preserve vision. Do not forget that through the organ of vision, we get 90% of all information from the outside world.