I solved (managed) my computer-use-related RSI. Here’s how:

1. Multiple mouse input methods: I switch between a vertical mouse and a Wacom tablet throughout the day.

2. Good armrests: I have an ergo chair with some of the most adjustable armrests you can get. Armrest position is a big factor. You want your arms close to in plane with the desk.

3. Mouse and keyboard wrist rests.

4. Stretching: I do forearm stretches every hour or so.

5. Grip trainers: just like it’s not good for your eyes to only look at a screen inches away continuously, it’s not good for your muscles to only do fine, precision work for hours. Break it up with some strength training. I’m fond of the gyroball style or the basic spring tension trainers.