Does a swollen, tender eyelid require immediate attention?

I wear contacts and was having some issues with them yesterday. My eyes are dry, so this is not out of the ordinary for me. I took my contacts out when I got home and they continued to itch, as usual, so I spent the latter part of the evening rubbing them often.

I woke up a few minutes ago (at 4AM) and noticed my lower right lid is sore when I blink. I looked and it’s not red, but it is slightly swollen. The itchiness is gone and my left eye is fine. No discharge or crustiness or anything like that.

I know this could be a few things, but I’m on vacation until tomorrow afternoon and I’d like to avoid spending hours sitting in a waiting room at Urgent Care. Do you think it would be alright to wait until Monday to see my ophthalmologist, if the symptoms persist? I plan on wearing my glasses from now until this problem goes away, of course.