It looks like build up a vet will have to flush out, honestly. Perhaps a keratin plug, or shed skin that go stuck in her eye.
My chameleon has a chronic eye problem/birth defect that predisposes him to build up like this.
I, personally, never had any luck with repta-rinse saline eye drops, but it may be due to my guy's problem being more complicated...
If this is relatively new, it probably is something that can be fixed with a professional flushing. Though, there's no way of telling if it will be recurring problem. I assume it's currently difficult for you to see someone about it, so keeping an eye on her behavior, the physical state of the eye (ie; does it leak, does it crust over) in the meantime is important. If there is discharge, crusting, or swelling, I'd see someone about it sooner.
The other thing is, how is your vitamin supplementing schedule?
Sometimes eye issues may culminate as a result of improper supplementation, so that's also a thing to consider.