There are millions of software professional and students using computers in India. We recommend few eye care tips for them to avoid Computer Vision Syndrome.

Eye Care For Computer Users

Common Symptoms
Eye strain
Blurred vision
Slow in focusing
Double vision
Headaches
Itchy eyes
Red eyes
Watery eyes

Causes

Blurred letters on the screen
Reflection of ceiling light, or glare from windows.
Eye muscle strain caused by looking at a near screen for too long.
Symptoms such as eye strain, blurred vision, slow in focusing, double vision, headaches appear when the ciliary eye muscles are tired and cannot focus properly.
Heat generated and dispersed from the back of the computer monitor accelerates tear evaporation.
Air-conditioning in computer room dries up the air and accelerate tear evaporation.
Over concentration on near screen reduces blinking frequency, which leads to inadequate tear replacement and makes the eyes itchy and red.
On the other hand, dryness and itchiness of eyes can stimulate excessive tear production, causing watery eyes

How to Take Care

Normally lit room
Use lampshade to divert ceiling light downwards to avoid glare.
To avoid reflection and glare from the screen, do not place the screen by the window and do not sit with your back facing the window. Consider using curtains to prevent too much light coming in from outside
To avoid reflection and glare from the table, use table and countertops with non-reflective matt surfaces
Choose dark letters and light background on the screen to enhance contrast, and use a filter to reduce the brightness
Regularly wipe the screen with tissue paper or dry cloth to remove dust that affect the clarity.
Place the screen slightly below eye level so that the eyes are looking slightly downwards
Document and the screen should be at the same distance, around 40-60 centimeters, to the eyes. This saves the eyes from frequent accommodation
Use accessory light for the document if needed
Take 5-10 minutes rest after using the computer for 30-40 minutes
Avoid placing the back of the monitor too close to wall, otherwise the heat will be reflected towards your eyes.
Avoid air-conditioning or setting the temperature too low, as long as the computer is not damaged
Intentionally increase the frequency of blinking so that tears can be swept over the eyes for lubrication and moisture
Use artificial tear to lubricate the eyes if needed.

Correct Posture and Set Up for Computer Use

A : Look down slightly towards the screen with an angle of 15-20 degree to minimize the reflection of ceiling light.
B : Maintain a distance of around 40-60 centimeters to the screen to prevent strain of the ciliary muscles of the eyes.
C : Keep upper arm and forearm at 90 degrees to prevent muscle strain.
D : Choose a chair with adjustable back-rest to keep spine straight.
E : Choose a seat with rounded or rolled edge, to keep posture stable.
F : Choose a chair with adjustable height and keep the height at around 34-52 centimeters so that the eyes can look slightly downwards at the screen.
G : Use a chair with wheels to facilitate movement while working.
H : Use foot-rest to support feet if needed.
I : Keep some space between the table and the knees to allow room for leg movement.
J : Use wrist-rest or pad to support the wrists.
K : Hold wrist at an angle less than 10 degrees to reduce strain.
L : Turn and tilt the screen to adjust for different working environment.
M : Place screen directly in front of the body to keep the eyes looking forward.
N : Use an adjustable stand for document. Keep document and the screen at a distance of around 40-60 centimeters from the eyes.
O : Choose a table with adjustable height to fit with the height of the chair

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