Upon closer inspection, I'm convinced this was the brown form (with blotches) of the Squirrel Treefrog. It's much less common than the traditional smooth green color, but it does not have any white spots behind the eyes, and the thighs are cream colored with no markings (as opposed to the pine woods treefrog).
This specimen is one several treefrogs that have one deformed or missing eyes. I have read that this is caused by a parasite during the tadpole stage of development?
One of the gambusia ponds
The Squirrel Treefrog (Hyla squirella) is a small species of tree frog found in the southeastern United States, from Texas to Virginia.