Tell me how to protect my eys?

Adjust the brightness and contrast so it is comfortable to look at.
Take frequent breaks. Look away from your computer and focus on something else for a minute every 10 minutes or so.
Work in a well lit environment. Dimness makes you strain your eyes more.

Hi friend..... You have mentioned a big problem actually. We all face similar kind of problem. I don't know exactly what is the remedy of it.
Still, I can give you some tips to protect your eyes.
1> You can use Anti-glare glasses
2> Eye drops really help.
3> Don't sit in front of computer for hours continuously. Take a break after some time.
4> Rub your eyes in a circular way before going to bed.

Hi
The usual problems seen as an after effect of long use of computer are itching of eyes, dry eyes, watering etc. Generally this is called as computer eye syndrome.
You can protect your eyes by reducing the brightness of the screen, reducing the glare by using anti-glare glasses. LCD screens are better for the eyes.
You should not continuously look in to the computer screen for long hours. you can take a break in every half an hour and close your eyes for two minutes. use lubricant drops every day. There are many softwares available which will give you a view break and lock the screen time to time.

don't wash your face after you finish work and don't after finish work? don't make come closer to monitor of computers?...

it's not a problem if you work 12hrs as long as its not continuous and that would mean frequent rest and frequent blinking of your eyes too would be beneficial. most of the time we felt pain in our eyes referred as strain caused by dryness of the eyeballs. our tears helps alleviate this and the fluids in our eyes could do wonders in this. another important thing to do is the darkness and brightness of your monitor, adjust them according to your preference that it's not too glary and not too dim as well. make sure that your monitor or you are working in a well lit area in your room and the lights should not be facing towards you that you're going to have a shadow from the light in front of you. it is also not advisable to rub your eyes when it's painful, you just need to take a rest by closing your eyes and constantly blinking it.

Mke sure that your in a well lit room. Have the omiter a comfortable distance away from you! Your eyes should be fine. they are ment to be used 16 hours per day. then rested for 8 hours. I do not think that reading a monitor will make then bad! If your still concerned then ask your Eye Doctor! I hope that this helps!:)

Make sure that you are in a well lit room. Open the cutains or turn a light on. Make sure that your not sitting too close the computer Moniter. If having trouble reading the monitor cleanse the screen. Our eyes are designed to be used 16 hours per day, then rest for 8 hours. If your still very concerned then call you EYE Doctor and ask them. I hope that this helps!