Computer Vision Syndrom


The syndrome of artificial vision, also called Computer Vision Syndrome is eye fatigue caused by prolonged use of a computer screen. 




The eye in its entirety undergoes this eyestrain.





• Tired eyes

• Headache

• Blurry vision

• Eye dryness

• Irritated eyes

• Difficulties to fix a particular object

• Pain in shoulders and neck



People working all day long on screens are highly likely to develop the syndrome.



Set a screen all day long demand significant attention, which indicates that the blinking is significantly decreased, and the eye is dehydrated, the conjunctiva and cornea suffer.

In addition, the eye is constantly accommodation, which explains that fatigue and that the vision can be blurred.



This discomfort disappears through prevention rules.



To help reduce the risk of digital eye strain, consider the following tips:

• Position your screen about an arm’s length from your eyes and 20 degrees below eye level.

• Set colour and contrast tones to suit your eyes, and match the brightness of your screen with your surroundings.

• Minimize reflected glare on your screen by dimming the lights in the room if possible and consider using a protective anti-glare screen cover. Also consider positioning your screen so that it sits perpendicular to windows and other bright light sources. If you are having trouble locating the source of the glare, turn off your monitor to reveal a darkened screen, and tilt/swivel your monitor until the reflection disappears.

• Keep your screen free of fingerprints and dust, as both can reduce visual clarity.

• If you alternate between looking at your screen and paperwork, consider obtaining a clipboard that attaches alongside your monitor so that the two are at the same working distance.

• Some optometrists recomend the use of the 20-20-20 rule. Every 20 minutes take a 20 second break and focus your eyes on something at least 20 feet away (the water cooler, possibly?). This is intended to give your eyes a much-needed break.

• Remember to blink! Did you know that on average we blink 12 times per minute, but when we’re on the computer, we only blink 5 times per minute? That can add up to dry eyes. Relieve the discomfort by using artificial tears (eye drops) or gels and remembering to blink. Consult your optometrist to determine which eye drops are best for you.

• Ask for anti-reflective coatings on the lenses of your glasses, which can be applied at the time of manufacturing, to protect your eyes from bright and/or flickering light sources such as fluorescent lights.

• Ask for lenses designed to reduce focusing effort while looking at computer screens. Many lens manufacturers now have prescription lenses that reduce the amount of focusing effort that the eyes must exert. These lenses are optimized for a computer screen distance and tend to maximize the field of view which is important as many people now have wider or even multiple monitors. 

Source : Opto



A complete eye exam is performed.

Different information about the time spent in front of screens are important information to tell your practitioner. 



In the case of dry eyes, artificial tears or ointment may be prescribed lubricant.

If symptoms of hyperopia and astigmatism type of vision are highlighted, wearing glasses may be advisable.



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