The eyes also overheat.

Do not rub your eyes that irritate you more! But it is not easy to endure the itching of the eyes after hours glued to the computer monitor, Smartphone or any other type of multimedia device, magical gadgets that keep us in virtual contact with the rest of humanity.

What was previously nothing more than a nuisance called “visual fatigue”, today became a generalized clinical picture that has first and last name. It is called Visual Computer Syndrome and affects between 70 and 90% of those who – whether for work or leisure – spend long hours with their eyes glued to the screen without just blinking.

The most common symptoms are eye pain, dryness, irritation and itching as if they had grit. The sight becomes blurred, sometimes we see double and many times we end up with headache from the effort when trying to focus the sight on the target.

These symptoms can be aggravated when lighting conditions are inappropriate and when we stand in front of a flow of air that reaches us directly to the eyes.

Like many other mechanisms, the eyes also “reheat.” And that overheating is the one that produces dryness, itching and redness when we were entranced for more than three hours in front of the monitor of a digital device.

We blink about 18 times per minute. It is the normal performance of this reflex and involuntary act that is responsible for moisturizing the eyes naturally. However, ophthalmologists say that the rate of blinking is greatly reduced when we are “connected,” triggering the symptoms of Visual Computer Syndrome, one of the most common physical ailments of the technological age.


There are studies that indicate that the people most affected are those who have problems of myopia and farsightedness.

Myopia tends to get closer to the screen to get a clear view of the target, with the musculoskeletal problems that such poor posture can generate, while the eyes of the hypermétropes make a greater effort of accommodation in close work, causing pain Headache, eye redness and visual fatigue.


In the upside down world the ideal would be to get rid of our gadgets, but such a drastic solution is no longer viable because it would make us feel that we are returning to the cave time. To avoid and / or minimize this current syndrome, the ophthalmologist Jeffey Anshel created the Manual of Visual Ergonomics, from which we extract some of his recommendations:

Focus of three

Blink, breathe and rest are the three components of the “three-focus” that Anshel defines in his manual and we must keep in mind. Blink consciously to moisten the eyes, breathe properly so that the eye muscles relax, and take 15-minute breaks every two hours at a minimum.

Rule 20-20-20

Our eyes are not designed to be used for long periods of time over short distances. So the expert recommends applying rule 20-20-20. That is, every 20 minutes it takes 20 seconds and looks 20 feet (6 meters) away.

Lower the monitor

We never put the newspaper, the book or the magazine just in front of the eyes when we read, but a little lower that is where the conventional reading is normally done. Anshel explains that because the straight position is not the natural one, the top of the monitor should be at the level of the user’s eyes, allowing a slightly lower viewing angle.

Eliminates reflections

It is advisable to move the monitor until the lights that are usually reflected on its front surface disappear. The expert says that to protect the eyes, the viewing distance should be between 50 and 100 centimeters from the eye to the computer screen.

Finally, he warns in his Visual Ergonomics Manual that there is no single solution to all types of problems associated with the use of multimedia devices, but that in general the answer to many of these modern complications is right in front of your eyes.