What is the worst physical damage you can do to your eyes when computer addicted?

It’s best to shift the distance to the monitor so that your eyes refocus. And glare from the screen can be straining.

Perhaps you should ask your ophthalmologist (immediately) rather than us. Even for the addicted, 11 hours daily in front of the computer has to be excessive. Don’t you want some kind of life other than this?

I started needing glasses—later, bifocals—not longer after I started using a computer. Coincidental? I think not.

You could adjust the contrast of your monitor. It’s not advisable to sit in a dark room, always leave a light on.

According to ophthalmologist’s I talked to long ago, it’s a myth that continued close-up work can damage eyesight. (As depicted, for instance, by Donald Pleasance’s forger character in the movie The Great Escape.) As if the ciliary muscles that adjust the eye’s lens power don’t quite relax enough for distant vision anymore – plausible but apparently wrong.

Yet there’s no question that prolonged strong accommodation (using eye muscles to adjust the lens of each eye for close-up vision, plus turning the eyes toward each other to meet at a near target ) causes eye strain, often accompanied by headache. Neck, shoulder, & back muscles might be strained as well with prolonged computer sessions. Don’t forget to exercise the calf muscles every now & then so you don’t get pulmonary embolism! Consider eye drops if you have a tendency to under-blink when transfixed with a screen image, lest your corneas dry leading to a scratchy sensation.

Now that CRTs are obsolete you needn’t worry about ionizing radiation (mainly x-rays) emanating from a screen surface close to your head.

Have you tried reducing glare from the display, as @antimatter suggests, adjusting contrast & brightness? Glare (I have no idea how to define it) contributes to eye strain – personal experience. If the room is dark the screen should probably not be at full brightness or contrast. Hopefully you won’t have to settle for a dark or washed-out image, either. Your eyes will settle the issue, lol.

I am not sure about your eyes.

But it will damage your brain and your muscles might atrophy.

@gasman I can easily adjust brightness by using two keys on my keyboard but I don’t know how to adjust contrast. Thank you.

in time you will require eyeglasses.Permanent damage.