When can my daughter wipe after pooping

My daughter is 4.5 and very smart. Shes been pooping on the toilet since she was about 1.5 years old. Fully potty trained by 2.5. She wiped herself after she pees but I dont trust any kid wiping after they poop lol. She knows to wipe vagina then butt and I always tell her when I wipe her butt after pooping that I wipe until it's clean. But I'm not sure I trust her yet. Any tips to keep everything clean and keep her from getting pink eye? She knows wash hands after pooping.