The action to help the eyes rest

To minimize eye defects when using computers, American scientists have come up with a very simple formula '4 * 20'.

This is explained by scientists at the University of Texas (USA) as follows: after about 20 minutes of working with the computer, you have to rest your eyes, then focus your mind on an object from the screen About 6m and blinking 20 times in a row will help you not get eye strain, dry eyes and avoid stress.

In particular, it is very effective when you work in the office without lighting, wind and air conditioning. Here are a few movements to help you avoid the risk of eye damage when working with computers.

- Head stays the same and rolls his eyes up and down, then left to right. Repeat this 5 times.

- Open your eyes and look clockwise and vice versa. This action also repeated 5 times.

- Two eyes wide open fixed on the forehead within 10 seconds. Similarly, focus your eyes on your nose for 10 seconds.

Next, you focus on looking at an object outside the window for a period of 2 minutes and then gently rub the muscles around the eyes to help the blood flow easily, the gland that works well does not cause dry eyes.

Note: if you have glasses, contact lenses, or contact lenses, remove them before performing these movements.