I agree with Boxienuts.....this is very typical for our Southwestern turtles. I live in Albuquerque NM and see this regularly with our desert box turtles. As it warms up more her eyes should clear up. Most of mine wake up with varying degrees of this issue. I've never had to take any of mine to the vet for this issue as it typically clears up as it warms up. I would do just as Boxienuts suggests if she doesn't start clearing up fairly soon.....give her a warm bath and gently wipe the gunk out. I doubt you'll need to take her to the vet but if it starts to affect her feeding and general demeanor,.....by all means find a vet that knows something about reptiles.
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Vichris
"The object of life is not to be on the side of the majority but to escape finding oneself in the ranks of the insane"- Marcus Aurelius