Computer Vision Syndrome or CVS refers to a group of symptoms that occur if one uses devices with digital screens in a prolonged manner. Such devices include personal computers or PCs, tablets, laptops, and smartphones.
According to Dr. Neha Hain, the most common symptoms of this syndrome include eye strain and headaches. A person may also experience neck and shoulder pain. This might happen because of the fact that the person has to sit in front of the computer or laptop for long hours. It is not clear as to home much time a person needs to spend looking at a digital screen to develop Computer Vision Syndrome. However, according to the American Optometric Association (AOA), if a person uses a digital screen for a longer time, he or she is prone to experience greater levels of discomfort. In India, 80% of the population suffers from this.
Now comes the causes of Computer Vision Syndrome. This syndrome occurs as a result of prolonged digital screen use. Digital screens cause a person’s eyes to work harder than normal. There are several factors responsible for this syndrome. They include:
- The screen content being less sharp or focused
- Poor contrast of the screen’s content against its background
- Reflections or glare bouncing off the screen
- Viewing the screen in low light conditions
- Being too close or too far from the screen
- Positioning the screen at an angle that cause eye and neck strain
- Taking insufficient screen breaks
When all these conditions are put together, these factors put greater demands on the eye’s ability to track and focus. These demands pose even a higher threat to people who already have minor uncorrected vision problems. If these additional demands on the human body’s visual system occur over extended periods, a person may experience symptoms of CVS. These symptoms vary from person to person. Some common symptoms are eye strain, dry and itchy eyes, blurry vision, double vision, myopia or nearsightedness, headaches, backache, neck or shoulder pain, and stiffness.
The treatment of CVS includes regular eye checkups, laser eye surgery, and vision therapy. Some tips for preventing this syndrome are:
- Positioning the screen about 20128 inches from the eyes
- Making sure that there is adequate lighting
- Using an antiglare screen
- Remembering to blink regularly to avoid eye dryness
- Wearing glasses or lenses as necessary
- Sitting comfortably with both feet flat on the floor and support in place for arms during typing
- Taking regular rest breaks
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