Dry/Irritated Eyes?

Naturally being a SWE I spend a lot of time in front of the computer, recently it seems like my eyes can't handle much screen time though. This morning it was especially bad and after just 30 minutes I had to get off the computer and close my eyes. But even on "good" days I may get a couple of hours at most before it's too much to handle.

I've tried eye drops, I've tried practicing good eye hygiene (blinking, looking away every X minutes, etc), I even just bought a pair of swimming goggles to hopefully trap moisture.

It's making it very difficult to get much work done and I'm worried I'll have to change professions entirely if it doesn't fix itself soon.

Any suggestions? I'm seeing my optometrist on the 24th but I'm worried they'll just tell me there's nothing to be done.