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Computer Vision Syndrome (CVS) was defined at the end of the 20th century. Eye fatigue, blurred vision, hypersensitivity to harsh light, and a burning sensation (sand) under the eyelids are common symptoms of people who stare at a computer screen for many hours.
Contents:
- Computer vision syndrome: causes
- Computer vision syndrome: how to avoid it?
Computer Vision Syndrome( CVS - Computer Vision Syndrome ) was first described over 20 years ago. In 1994, The American Academy of Ophthalmology defined CVS as "a complex set of eye and vision problems related to near work that are experienced when using a computer or performing related activities."
In 1999, CVS studies were conducted at the Ophthalmology Clinic of the Medical University in Wrocław. In a group of 5,000 patients for every 100 people tested, 96 had at least one or more symptoms typical of CVS! Today, many of us are doomed to work at the computer, but we already know how to take care of our eyes so that they feel as little tired as possible.
Computer vision syndrome: causes
These are not the monitors themselves, but improper hygiene at work tires our eyes, because absorbed in the performance of a task, we forget about them. The most common reasons for the occurrence of CVS are:
- type of room lighting
- room illumination
- eye distance from the monitor
- light reflections from the screen
- position and body alignment during work
- head tilt angle during work
- vision defect
Eye diseases and visual impairment: causes and treatment
Bloodshot eyes: what disease does they show?
Contemporary vision correction methods
Polish standards do not classify computer work as harmful. It is treated only as a nuisance. It has been found that CVS and the symptoms associated with it are not a disease but fatigue.
Computer vision syndrome: how to avoid it?
- Place the monitor at a height of 40-75 cm from your eyesyour eyesight so that no light is reflected from it.
- Blink - staring at the monitor screen means that we blink less often than when we read or talk. And blinking is nothing more than moisturizing the eye. The less we blink, the more dry its surface is.
- Use moisturizing drops, i.e. artificial tears - available for purchase without a prescription at any pharmacy. How often to use them? Whenever you think about your eyes. You should not be afraid of an overdose of the drops. If visual comfort does not improve with the regular use of artificial tears, see an ophthalmologist to check that the eyes are producing the right amount of tears and that their composition is correct.
- Change your point of view - change your gaze as often as possible. Every now and then look to the side, far ahead, or to something very close. Such simple exercises, plus looking at the greenery outside the window, relaxes your eyesight.
- Take care of the tear film, which consists of three layers. The outer fatty layer (lipid layer) protects the eyes against the evaporation of tears. The middle layer of the film is the water layer (the thickest) that moisturizes and nourishes the eyes. The inner layer of the film - mucin - is responsible for the adhesion of the tears to the surface of the eye. If any of the layers are not working properly, you may experience a condition known as dry eye syndrome. It may be caused by too little or incorrect tear composition. An ophthalmologist will check it after performing special tests.
Research carried out by the Vision Ergonomics Research Laboratory on behalf of Microsoft has shown that changing the font, both in terms of its shape and size, affects the quality of vision and the possible occurrence of visual impairment. Verdana in sizes 10-12 has been found to be the most eye-friendly font.
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