I work on a PC 8-10 hours a day...went back to work on Tuesday after my surgery, which was on a Thursday. No issues, except dry eyes...when working on a PC for that long, you have to use drops every 30-45 minutes for a few months. I am 10 weeks post op and am down to every 2 hours while working...4-6 times a day on weekends
I had lasik and was back to work the next day. I sit in front of a computer all day long. Dry eye can be an issue. But, mostly (if not because you have a dry eye issue like I do) if you have dry eyes while on the computer, try to remember to blink. Doctors say that a lot of people who are on the computer or even read books a lot tend to forget to blink. So, just make sure you stay conscious of it and try to remember to blink. Use the drops often post-op regardless of your computer use. We need a lot of moisture in our eyes as a rule but, post-op, moisture is a key factor in our healing.
Just know that your eyes will get tired a bit quicker than usual for a bit post-op while you are healing. It is normal. Just make sure you get enough sleep so they can recover overnight.
I think it is best to wait a few days to use your computer. I tried to play games on mine a day after my surgery and my eyes got real tired. But after a few days it was OK. So, I would say wait a couple days before you do more than check your email.
I had lasik done about 7 years ago. I was using a small 15 inch moniter at work and couldn't see it as I am now farsighted after LASIK. I went to my school district where I work and they supplied me with a 17 inch moniter. I think it was covered under their disability requirements. I know wear trifocals for the computer.