Is it just the one eye?
Could be a vitamin A issue. I had the same issue with one of my panthers. Started supplementing with vitamin A and it corrected itself. Please note, this needs to be done very slightly. It was about 5 years ago, but i took vitamin A liquid capsules, poked a hole and put...
Any species of any kind in the wild, non native is invasive. UNLESS it is put there with the proper paper work, and meant to be put in an area for whatever reason. But when animals as pets are just released, they are invasive. Chameleons, pythons, etc. For example, their are a lot of game birds...