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Guide to Dealing With Computer Vision Syndrome

by Eric Gathoni

Guide to Dealing With Computer Vision Syndrome

Over the past 20-25 years, there has been an incredible progression in information technology. The utilisation of computers in each working environment has made life more straightforward and increased the output enormously. The computer has become almost an irreplaceable piece of hardware both at the office and at home. 

The presentation of the computer no questions have reformed and helped the general public, but it partners with health-related issues. Musculoskeletal-related complaints, such as shivering and numbness of the fingers, cervical firmness, and spinal pain, are notable for being related to extended use of computers.

Computer Vision Syndrome

Also, visual and eye problems are accounted for as the most frequently occurring medical conditions among computer users. The development of computers and progression in technology has changed and helped the general public, but it has also developed some serious issues for eyes and vision health.

It has caused side effects connected with its use like ocular injury, irritation, redness, dryness, blurred vision, and double vision. This bunch of side effects is known as computer vision syndrome, which is portrayed by the visual symptoms that occur from viewing a computer display or its environment.

So in this blog, we will discuss the Computer Vision Syndrome, its causes, symptoms, diagnosis, and how someone can deal with it using proper treatment from an optometrist and prevention.

What is Computer Vision Syndrome?

The computer vision syndrome is defined as a complex of eye and vision issues connected with the exercises which stress the near vision and which are experienced in association, or during, the utilisation of the computer. 

It is described by visual side effects which result from interaction with a computer screen or its related circumstance. The main ocular symptoms mentioned by computer users are eye strain, irritation, burning sensation in the eyes, redness, and double and blurred vision

These side effects are mostly temporary. They disappear toward the end of the working day, even though a minority of users might encounter continuity of side effects even after work. Assuming no mediation is started, a larger part of these side effects will repeat and deteriorate from here in the future.

Three possible mechanisms bring about the side effects experienced in computer vision syndrome: 

  1. Extraocular mechanism
  2. Accommodative mechanism
  3. Ocular surface mechanism

Extraocular mechanisms cause musculoskeletal symptoms, for example, neck and back stiffness, pain, migraine, spinal injury, and shoulder ache. These side effects are connected with improper computer screen usage, leading to muscle sprain.

Accommodative mechanism causes blurred vision, double vision, presbyopia, nearsightedness, and slowness of focus change. A study reported that transient nearsightedness was seen in 20% of computer users toward the end of their work shift. 

Many individuals might have a slight accommodative issue or binocular issues, which don't ordinarily cause symptoms when doing less exhausting visual work every day. However, these issues may worsen in prolonged time of computer usage. These side effects might be multifactorial.

Ocular surface mechanism causes eye problems like dryness of the eyes, redness, coarse sensation, and burning sensation after prolonged computer use. Cornea dryness and a decrease in blink rate are among the normal factors viewed as connected with dryness and redness of the eyes. 

Other symptoms are the expanded surface of cornea exposure brought about by a horizontal look at the computer screen, a decrease in tear formation because of the maturing process, contact lens utilisation, medicine like allergy drugs, and chronic medical illnesses like the immune system diseases.

blurred vision.

Causes of Computer Vision Syndrome

Seeing a computer or digital screen frequently makes the eyes focus more and work harder. Accordingly, the interesting characteristics and high visual demands of computer and digital screen viewing make numerous people prone to the development of vision-related eye problems. 

Uncorrected vision issues can expand the seriousness of computer vision syndrome (CVS) or digital eye strain side effects. Seeing a computer or digital screen is not the same as perusing a printed page. The letters on the computer or handheld gadget are frequently not as exact or strongly characterised. 

The degree of differentiation of the letters to the background is diminished, and the presence of brightness and reflections on the screen might make viewing troublesome. Viewing at distances and points utilised for this work is likewise frequently not the same as those for other writing and reading works. 

Thus, the eye focusing and eye movement prerequisites for computerised screen viewing can put extra stress on the visual system. Likewise, even minor vision issues can influence comfort and performance while utilising other computerised screen gadgets.

Uncorrected or under remedied vision issues can be major contributing elements to computer vision syndrome. Indeed, even individuals with an eyeglass or contact lens remedy might find it inappropriate for their computer screen's particular viewing distances. 

Certain individuals slant their heads at odd points because their glasses aren't intended for looking at a computer or twisting toward the screen to see it. Their stances can result in muscle spasms or unbearable shoulder or back pain. Thus, viewing issues also cause other health problems.

In general, symptoms of Computer Vision Syndrome happen because of the visual demands of the task that surpass the visual capacities of the person to perform them easily. Forcing our eyes and visual system to work beyond their limits begins most of the visual and eye problems.

At most serious risk for developing Computer Vision Syndrome are those people who spend at least two or more consistent hours at a computer or utilising an advanced screen gadget every day. People who even use computer glasses are still at the risk of developing such problems.

Symptoms of Computer Vision Syndrome

Symptoms of Computer Vision Syndrome

The most well-known symptoms related to Computer Vision Syndrome or digital eye strain are as follows;

  • Blurred vision
  • Dry eye
  • Double vision
  • Eye fatigue
  • Eye uneasiness
  • Eye redness
  • Eye itching
  • Cerebral pains
  • Eye tearing
  • Neck and shoulder pain

These side effects might occur due to:

  • Poor lighting conditions.
  • Improper viewing distances
  • Glare on a digital screen.
  • Uncorrected vision issues.
  • Improper seating stance.
  • A mix of these factors.

The degree to which people experience visual side effects frequently relies upon the level of their visual capacities and how much time they spend viewing a digital screen.

Uncorrected vision issues like farsightedness and astigmatism, short eye focusing or coordination capacities, and maturing changes of the eyes, like presbyopia, can all add to the development of visual symptoms while utilising a computer or digital screen gadget.

Large numbers of the visual symptoms experienced by computer users are temporary and will decline after stopping or decreasing the computer work or utilisation of the computerised gadget. 

A few people might encounter decreased visual capacities, like blurred distance vision, even after stopping the work at a computer. Assuming nothing is done to address the reason for the issue, the symptoms will proceed to repeat and may worsen further with future computer screen use.

Diagnosis of Computer Vision Syndrome

Computer Vision Syndrome or digital eye strain can be diagnosed through a comprehensive eye assessment. Testing, with more focus on visual requirements at the computer or digital working distance, may include:

  • Patient history to decide any problems the patient is encountering and the presence of any broad health issues, prescriptions taken, or environmental factors that might be adding to the symptoms connected with computer use.
  • Visual sharpness estimations to determine the degree to which vision might be impacted.
  • Refraction to decide the appropriate lens power expected to compensate for any refractive errors (partial blindness, astigmatism, or farsightedness ).
  • Testing how the eyes move focuses and work together. To acquire a detailed, single picture of what is being seen, the eyes should change focus, move and work. This testing will search for issues that prevent the eyes from focusing successfully or make it challenging to utilise the two eyes together.

This testing might decide how the eyes answer under ordinary seeing circumstances without eye drops. For example, in some cases, when a portion of the eyes' focusing power might be hidden, eye drops might be utilised. 

They briefly keep the eyes from changing their focus while testing. Utilising the information acquired from these tests, alongside the aftereffects of different tests, an optometrist can decide the presence of Computer Vision Syndrome or digital eye strain and prompt treatment options.

Treatment of Computer Vision Syndrome

The treatment of Computer Vision Syndrome is varied. However, they can typically be mitigated by getting ordinary eye care and changing how the screen is seen. People who don't need the utilisation of eyeglasses for other day-to-day exercises might profit from computer glasses recommended explicitly for computer use. 

Moreover, people previously wearing glasses might observe their ongoing solution doesn't give ideal vision to view a computer. Night vision glasses or contact lenses recommended for general use may not be satisfactory for computer work. Contact lenses are prescribed to satisfy the unique visual needs of computer viewing.

Night vision glasses

Unique lens design, lens powers, or lens colours or coatings might assist with expanding visual capacities and comfort. Some computer users experience eye focus or coordination issues that can't be remedied satisfactorily with eyeglasses or contact focal points. 

A program of vision treatment might be expected to treat these particular issues. Vision therapy, additionally called visual training, is an organised program of visual exercises supposed to work on visual capacities. It prepares the eyes and brain to really cooperate and work efficiently. 

These eye practices assist with remediating lack in eye development, eye focusing, and eye coordination and build up the eye-brain association. The treatment for Computer Vision Syndrome might incorporate office-based and home procedures by a trained optometrist

Proper body positioning for computer use can also work as a treatment for Computer Vision Syndrome. A few significant factors in preventing or diminishing the symptoms of Computer Vision Syndrome have to do with the computer and the way things are utilised. 

This incorporates lighting conditions, seat comfort, area of reference materials, the place of the screen, and the utilisation of rest breaks. Regular eye checkups and ideal viewing habits can assist with reducing and preventing the development of the symptoms related to Computer Vision Syndrome.

Prevention of Computer Vision Syndrome

Prevention or decrease of the eye problems related to Computer Vision Syndrome or digital eye strain includes taking measures to control lighting and glare on the gadget screen, laying out proper working distances and stance for screen viewing, and guaranteeing that even minor vision issues are appropriately treated.

Here are a few effective ways you can use to prevent the development of Computer Vision Syndrome;

Try not to take a vision issue to work.

Regardless of whether glasses are not required for driving, reading, or different exercises, they may offer advantages for a minor vision issue that computer use increases. A computer glasses remedy might be expected to lessen vision stress at work.

Glasses should fulfil the need of the work.

Assuming that glasses are worn for distant vision, reading and writing, or both, they may not give the most effective vision to view a computer screen. Tell the optometrist about the amount of work done on the computer screen. Accurate data will assist with getting the best vision improvement.

Limit discomfort from blue light and glare.

Blue light from LED and fluorescent lighting and screens, tablets, and cell phones can adversely influence vision over the long haul. Unique eye lens colours and coatings can diminish the dangerous effect of blue light. Limit screen glare on the computer screen by utilising a glare reduction filter or repositioning the screen.


Computer vision syndrome is another issue that has emerged in this century following the increased utilisation of computers both at work and at home. There is a relationship between ocular symptoms like pain, redness, dryness, blurred vision, double vision, and other head and neck injuries and computer use.

Prevention stays the primary option for avoiding computer vision syndrome. Alteration in the ergonomics of the workplace, patient education, and adequate eye care from a trained optometrist are effective techniques in managing computer vision syndrome.  Get a complete Eye test at Optica today to ensure good Eye health and overall visual wellbeing!