With entropion, the eyelid rolls inward and the eye lashes irritate the cornea, so permanent damage can occur. The usual treatment is to do a minor tacking surgery to correct the inward roll of the eyelid. Some dogs actually have an inward growing eyelash that needs a little electrocautery to burn the hair follicle so the lash doesn’t keep growing back.
Cherry eye is an entirely different problem, which is an inflamed gland in the corner of the eye and not so common in poodles as it is in some other breeds, like Cockers, and Pekinese. It also requires minor surgery sometimes, but it’s pretty hard for an owner to fail to notice a cherry eye. It’s unsightly and can cause the eye to not close properly, but it is usually just a cosmetic issue.
A lot of dogs with dry eye also tear a lot due to the inflammation that causes dry eye. It blocks the nasolacrimal duct, so tears run down the face instead of exiting the normal way through the nose.
