I got it, it's like the behavior after having Alzheimer's disease. This really helped! Thank you!

Hi! I assume that the eyes in question belong to someone old. Selinity refers to the state of being 'senile'. Senile means an elderly person whose mental faculties are impaired. Example; 'Her husband was now completely senile and had even forgotten who his wife was'. The idea behind this sentence is that when people become senile they are, in a way, very childlike; they require help to perform the most basic of daily tasks, just like a child. So she's saying that she sees something childish in her eyes, but it has nothing to do with her senile nature.' I hope this helps Jimmy