chinchilla eye questions

so my 11 month old chin Zoey occasionally gets what I think is sleep crustys in her eye that closes it shut. it doesn't happen very often but I feel as though its been happening more often (about twice a week). im wondering if I should take her to the vet or not shes acting fine, eating normal, drinking normal, shes still playful and rambunctious. I did wipe her eye with a damp cloth and now its wide open and looks ok. the outside is a little pink tho and in the light it looks like her pupil is a clearish white. I wonder if its an infection or just irritation. if someone could give me a little advise until I can get in to see the vet that would be fantastic


-- a worried mama