Does eye strain (from computer) cause long term bad effects on your eyes?!
Question: It depends on what you mean by "strain" on your eyes. Computer viewing does not cause good vision to become bad or bad vision to become worse. That is genetically determined. However, working on a computer can cause eyestrain when your focus is kept on a VDT screen for a long time. It can put stress on the eye muscles (those that control eye movement) and the facial and scalp muscles, causing pain and headache.
Yes, you can do some things to decrease problems. The position of your workstation can help reduce the strain on your eyes:
You should have good lighting, but VDT stations should be located away from windows and curtains should be closed to reduce glare.
The VDT screen should be 18 to 28 inches from your eyes and should be within 10 degrees of eye level directly in front of the face.
Your monitor should be at, or slightly below, eye level so that your neck is not extending upward but rather is flexed slightly down. Hyper extension or over extension of your neck requires muscle strength and may lead to neck fatigue, pain and soreness.
Proper posturing while at the keyboard is critical to avoid muscle strain. Sit in a comfortable position located about two feet from the computer monitor.
Back should be straight so that the hips are flexed at 80-degree angles.
You should have a good chair with good back support and a seat height that permits both feet to comfortably rest on the floor or on a footrest with knees at 90 degrees.
Proper chair selection is very important. Ideally, your chair would have adjustable forearms, adjustable backrest, wheels and adjustable height.
Both elbows are kept at a 90 degree angle, with the forearms supported by the armrests on the chair.
The keyboard height should be adjusted so that the palms of both hands can rest comfortably on the wrist rest, while keeping the forearms on the forearm rests of the chair. Wrists should be either in neutral or a slightly flexed upward position.
In addition, taking a vision break every half hour and doing the following exercises will help you relax your eyes:
PALMING
Form shallow cups with the palms of your hands.
Place them lightly over your closed eyes, and keep them there for one minute.
Do not put pressure on your eyeballs.
CHANGE FOCUS
Look at and focus on an object at least 20 feet away.
Hold this distant focus long enough for your eye muscles to move and expand.
DEEP WINK
Close your eyelids very tight for 5 to 7 seconds
Open them very wide for several seconds.
Answers: It depends on what you mean by "strain" on your eyes. Computer viewing does not cause good vision to become bad or bad vision to become worse. That is genetically determined. However, working on a computer can cause eyestrain when your focus is kept on a VDT screen for a long time. It can put stress on the eye muscles (those that control eye movement) and the facial and scalp muscles, causing pain and headache.
Yes, you can do some things to decrease problems. The position of your workstation can help reduce the strain on your eyes:
You should have good lighting, but VDT stations should be located away from windows and curtains should be closed to reduce glare.
The VDT screen should be 18 to 28 inches from your eyes and should be within 10 degrees of eye level directly in front of the face.
Your monitor should be at, or slightly below, eye level so that your neck is not extending upward but rather is flexed slightly down. Hyper extension or over extension of your neck requires muscle strength and may lead to neck fatigue, pain and soreness.
Proper posturing while at the keyboard is critical to avoid muscle strain. Sit in a comfortable position located about two feet from the computer monitor.
Back should be straight so that the hips are flexed at 80-degree angles.
You should have a good chair with good back support and a seat height that permits both feet to comfortably rest on the floor or on a footrest with knees at 90 degrees.
Proper chair selection is very important. Ideally, your chair would have adjustable forearms, adjustable backrest, wheels and adjustable height.
Both elbows are kept at a 90 degree angle, with the forearms supported by the armrests on the chair.
The keyboard height should be adjusted so that the palms of both hands can rest comfortably on the wrist rest, while keeping the forearms on the forearm rests of the chair. Wrists should be either in neutral or a slightly flexed upward position.
In addition, taking a vision break every half hour and doing the following exercises will help you relax your eyes:
PALMING
Form shallow cups with the palms of your hands.
Place them lightly over your closed eyes, and keep them there for one minute.
Do not put pressure on your eyeballs.
CHANGE FOCUS
Look at and focus on an object at least 20 feet away.
Hold this distant focus long enough for your eye muscles to move and expand.
DEEP WINK
Close your eyelids very tight for 5 to 7 seconds
Open them very wide for several seconds.
yes it may cause some bad effects on eyes, so please use some screen filter.
It can cause a muscle stigma which can result in decreased vision that require eye glasses.
I already have bad vision and my eye doctor gave me this advise, set a timer for 30 minutes then take a break away from pc for a few mins or more and rotate the eyes before going back.
After just one week, I didn't need the timer since I created a habit that when my eyes feel a certain way, it's time to break. (Funny, but it's helped my backaches, too!)
You are right, jason.
You bet!
Pay attention to the long (and wonderful) advice offered above...and give that answer a thumbs up (please).
Your eyes should last a lifetime.
Probably not, heed the advice of Jason.