Blink every now and then to relieve Itchy Red Eyes - CVS - Computer Vision Syndrome

After spending several minutes in front a computer monitor, I feel that my eyes became itchy; I also noticed that my eyes are red. I thought that the cause of the problem
was the newly replaced light bulb located behind me that the brightness of the light reflecting the computer monitor is too much and causes the strain in my eyes.

I replaced the light bulb with the one with a much lower illumination level, I noticed that my eyes problem minimized.

Try to surf the net to find out what can I dig regarding this kind of eye problem, find out that this is one of the Computer Vision Syndromes or CVS and blinking every now and then may relieved the eyes itchiness.