Like most people here I look at pc & mobile screen allot as they continually become more central to our lives. I am not currently in a deskjob, I would say at the moment I spend about 4 hours a night in-front of the computer. On days off this sometimes reaches a total of 10 hours non continuous. I notice eye strain which I assume is only natural after steering at a screen for such time?

I used to be in a 100% computer orientated job and I could not stand the combination of being forced to sit there or look at a screen 8 hours a day, I also don't believe it was efficient or practical. At that time I would also spend the night on the computer. 

I am currently looking for another job and actively avoiding full time computer orientated work for this reason and the fact I feel if I am in a full time pc orientated job I will probably go blind. 

Just interested to know other peoples experiences? Are some people simply more capable of steering at screens all day? Is it something wrong with me? What can be done to avoid eye strain? (I use to try and look away from the screen for 2 minutes every 15 minutes. I also ensured screen was slightly brighter than background lighting.)