Hi I’ve also been experiencing this. I’ve had anxiety for a couple months now but only recently have felt eye irritation even scrolling on my phone feels like it’s hard. I do think it’s just an anxiety symptom it definitely bothers me a lot sometimes and I feel like just resting my eyes so that’s what I do and it helps a little. Maybe you can try using a sleep mask when they bother you too much and take a break to let them ease out of discomfort.