If Your Farsighted You Dont have to Look at The Computer Close.Because You Can Damage Your Eyes.And You Will Have to Get Glasses.But If You Cant See the Computer.Then You Will Have to Go to Your Eye Doctor To Get a Check up
Around wrist to elbows length, for over 20" screens you should sit further away, about 30"-40" away.
As long as you are not right in front of the computer screen you should be fine. But train your self to keep blinking, because you're eyes dry out and itch, and become blurry.
That depends on how clumsy you are. Or, alternatively, on how rich you are.
If it's somebody else's computer, then as far away as they say.
40cm
A 70'' TVâ You should sit between 9 and 14.5 feet away from the screen. A 75'' TVâ You should sit between 9.5 and 15.5 feet away from the screen.
The computer screen should sit 18 to 22 inches from your face. And, the center of the screen should be about 10 to 15 degrees below your eyes.
Its better in the middle
10 inches/ 25cm
there are many variables involved but it usually depends on the exposure time of the display to your eyes the distance you sit away from the screen and the type of display is in use i.e lcd led plasma or crt this applies to both your tv screen and computer screen
It should be layed out so that when you sit in front of the desk the monitor should be elivated so top of the monitor's screen should be just above your eyebrows so your eyes get maximum view of the screen and on the the desk the keyboard should be on the desk in front of you placed at the length of where your arm are slightly bent and the monitor about 5cms behind the keyboard.
youtube is being controlled by aliens forcing regular people like us to sit and watch videos in regular screen size
About 25 to 30 centimeters away.
As far a way as possible but at a distance where you are still safely able to operate the vehicle
Because if you sit down to much on the "computer" chair you can get hormones or a headache or your eyes will start to suck
You really shouldn't sit all that closely, simply because it's hard on the eyes and besides, you need to sit far enough away that you can easily view the entire screen and not just a portion of it. As far as getting `too close', I don't think that x-ray's are much of a problem with the newer TV's and that was the only reason for having to sit at least 6' feet away from the TV in the late 50's before they learned to design an x-ray protection circuit.
You place your butt on the top of it. Like how you would normally sit.. its common sense :/ And why would you want to sit on your computer?!