Computer reaction
Significantly reduce the risk of eye disease can be, but subject to compliance with the rules of visual hygiene and safety when working with the monitor. Back in the late 70's of the last century, when the first personal computers appeared, ophthalmologists had a phrase "computer visual syndrome" in the working terminology.
What is the harmful effect of the computer on the eyes? The negative impact of PC and monitor is composed of several factors.
The first factor
Electromagnetic radiation has a harmful effect on visual impulses in the retina and the visual analyzer. It helps to reduce contrast sensitivity and visual functions.
The second factor
Static tension in the intraocular accommodative muscle, which occurs when working at close range from the screen for a long time, can lead to a disruption in the metabolism of the eye muscles and microcirculation. As a result, there is a change in the type of spasm or disorder of work in accommodation. This process is characterized by visual fatigue, decreased visual acuity, headaches, doubling and "clouding" of objects, difficulty in focusing equidistant objects, reducing contrast-frequency perception and, therefore, performance. Accommodation disorders are one of the glacial factors in the progress of myopia. Scientists from different countries note a significant increase in the number of myopic among young people and adolescents who actively use computers in everyday life. So, for example, today in Japan, myopia of a weak degree is regarded as a relative norm.
The third factor
"Dry eye syndrome" - happens as a result of a sharp reduction in the frequency of blinking. It can be characterized by the appearance of redness and dry eyes.
We are looking for reasons.
The main causes of eye diseases with prolonged work for PCs can be:
• poor ergonomics of the workplace (as an option, improper placement of the monitor);
• Incorrect lighting;
• incorrect correction of refractive errors (astigmatism, hyperopia, myopia) in conditions of excessive static visual load.
• non-observance of the regime of visual loads;
Therefore, control over compliance with the rules for the duration of the load, visual hygiene, the organization of the workplace is necessary for constant work with the monitor.
How can I avoid illness?
The disease must be prevented and treated. Therefore, preventive examinations at the ophthalmologist need to be carried out at least 2 times a year. Doctors offer various methods for training eye muscles, physiotherapy, which restore microcirculation of muscle tissue and metabolism. Restorative therapy courses are usually conducted 2-3 times a year and they include 10 procedures. The most common are liquid crystal glasses, therapeutic laser, infrasound pneumomassage, accommodation training according to Avetisov.
With the strengthening of advertising in the modern world, more and more myths are born, the belief in which can seriously undermine health. For example, you should not place high hopes on glasses with "anti-computer coating", usually Korean or Chinese production, which protect the eyes from electromagnetic radiation and they are very actively offered to computer users. However, eyeglass lenses can not prevent the bending of electromagnetic wave obstacles (diffraction) and serve as a good shield against them. Reduce the load on the muscles of the eye with the glasses can: they should be lens-light filters, which cut off part of the blue component of the spectrum. This reduces the load on the muscles of the eye and increases the clarity of the image.
For prevention
The risk of eye diseases can be significantly reduced if you remember the measures for prevention. For this you need:
• use the LCD monitor
• use eyeglasses with lens-light filters;
• control the humidity in the premises;
• It is necessary to actively use moisturizing drops for the eyes, which include preparations of artificial and natural tears, to stimulate the frequency of blinking. All this is necessary to restore the correct exchange of tears.
• People who use contact lenses, it is better to use lubricating and moisturizing drops, in the content of which there is hyaluronic acid.
• Know the basic rules how to protect your body from the harm of working at the computer.
In the home medicine cabinet
It is useful to alternate cold and warm compresses - apply alternately cold and hot cotton swabs, which should be slightly moistened with sage infusion. After the procedure, the eyes need to get wet with a napkin and apply a nourishing cream on the eyelids.
Reddened eyelids and eyes can be washed with infusion of chamomile or lime blossom flowers. Quickly refresh the skin around the eyes and relieve fatigue will help the potatoes. On a small grater, grate the potatoes and put gruel on closed eyelids. Minute 5-10 lie down, try to relax.
Exercises :
1. Hold eyes tightly for 3-5 seconds, then open for the same time. Repeat the exercise 6-8 times. It improves blood circulation, strengthens the muscles of the eyelids, relaxes the muscles of the eyes.
2. Prompt quickly 30 seconds, then look at yourself for at least the same time. Repeat 3 times. Exercise will improve blood circulation.
3. Close your eyes and massage your eyelids with circular movements of your index fingers for a minute. This will relax the muscles and improve blood circulation.