Computer Vision Syndrome (CVS)
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Computer Vision Syndrome (CVS) at
Nethra Foundations
Computer vision syndrome (CVS) is strain on the eyes that happens when you use a computer or digital device for prolonged periods of time. Anyone who has spent a few hours on the computer has probably felt some of the effects of prolonged use of the computer or other digital technology. The discomfort it causes can be minimized by following a few simple practices. There are a number of factors that determine the amount of strain your body feels as you work on a computer or other digital device, including lighting in the room, distance from the screen, glare on the screen, seating posture, and the angle of your head – not to mention any existing vision problems you may have. One or all of these may combine to cause an uncomfortable amount of strain on your eyes.
Symptoms of Computer Vision Syndrome
- Eyestrain
- Headaches
- Blurred vision
- Dry eyes
- Neck and shoulder pain
Question & Answer
What is considered eye trauma?
Computers are now an integral part of our day. This advancement of science has brought about a vast change in our lives that we wonder what life would have been without it! With all its benefits come certain health related issues, awareness of which is minimal. The human eye was designed for more of distance work and we sailed through centuries with minimal difficulties as the eyes could adapt to the changes in our near tasks. The transformation from hunting in the open to working on paper has been slow and gradual and put not much stress on the visual system. But the shift from PAPER to COMPUTERS has been so rapid and strong that the eye has not adapted to the new demands put on it to work at NEAR in a new visual environment for extensive hours and in stressful environments.
Who can be affected by CVS?
Computer Vision Syndrome affects 75% of the people who work on computers, most markedly those who work more than 3 to 4 hours with computers. This includes all professions that use computers (IT, BPO, Accounting, banking, front office) students and children who • Work at the computer for more than 3 hours a day • Have strain at computer work. • Experience any or all of the symptoms of CVS stated • Experience stressful situations associated with work
Is there any age limit for CVS?
CVS can occur in any age group but children are found to report less of symptoms. This does not indicate that children are not prone to CVS, but that they continue to strain the visual system and the condition is overlooked to a greater extent than adults. The visual system in teenagers is well adapted to near tasks, but the strain due to change in image quality, glare, lighting and absence of breaks between computer use, associated with muscle imbalances and power changes need a closer watch as it is the changing phase of physical development and no chances can be taken.
How can it be detected?
CVS is often different from other typical eye problems. The usual ophthalmic examination focuses more on distance vision (6 m and beyond) and near vision (35 to 40 cm), whereas the computer professionals have a unique working distances with respect to the monitor, keyboard, mouse, etc. Due to this difference in working distance, the usual examination does not completely address the actual environmental conditions. The Computer Vision Clinic, however, is specially designed to address the varied needs of the individual computer user.
What is the best way to treat CVS?
The best way to treat CVS is to identify the conditions that have contributed to the symptoms and address them. The earlier the condition is detected the more it acts as a preventive measure. Ideal ocular status and proper ergonomics both visual and environmental could keep the condition under check. Management is minimal and modifications become the answer. The frequency of follow-up is also reduced as the condition is easily reversible. A delay in detection means signs which have set in more deeply and a greater effort is required from the clinician and the computer user to first program a schedule to rectify the damages to the maximum possible extent and then work towards reducing the source of repetitive stress or altering it favourably without affecting work or the eyes. In this situation frequent follow-ups are essential to ensure proper management of the ocular condition and asses the effect of the work related changes on the eye. The adage “Prevention is better than cure” seems to best fit CVS and eye care.
Can it be prevented?
Yes. CVS can be prevented. The first step towards prevention is to be aware. CVS sets in often due to the assumption that mild discomfort is inevitable at computer work. The early signs are overlooked and this gives way to stronger problems. Awareness of what is ideal for the eye and visual system to work comfortably is thus the first step. The web is a great source of information for this awareness. But improper use of the information and poor understanding of the intricate visual process can often lead to more discomfort than we could tell. This is where professional counsel comes in handy to educate ourselves on the best ways to utilize our ocular and ergonomic resources with the least effect on the human body.