The droopy eye thing can be genetics for sure. However, it can also be a symptom of chronic eye infections or dehydration. As long as your vet checked for both to rule them out then yes, it's very likely an inherited trait. One thing to keep in mind though - my Bearded Dragon has genetically droopy eyes as well (I've met both his parents and chose from him among all his siblings who all had the condition) and the vet suggested rinsing his eyes out about once/wk with saline. Droopy eyes catch dust and bacteria which causes irritation and can further exacerbate the droopy eyes and in some cases lead to infection. Rinsing them out keeps them clean and prevents secondary issues from occurring. The only other solution was surgery, but that's costly and risky so I opted for taking care of it at home instead.