i'm not entirely sure if i'm seeing a retained eyecap. what's your humidity at, and when was the last time the snake shed? did you notice this after the last shed?

here's an image of Yellow which shows that skin PythonBabes mentioned above for reference.


if it is a retained eye cap i would expect to see dimpling on the eye due to poor humidity. even if it is a retained eyecap, it's not a huge deal. ensure your humidity is on point for the next shed and be sure the eyecap comes off when she sheds out.