Yes, cat eyelid entropion can only be fundamentally treated through surgery. Once the breeder finds out, he needs to take his pet to a regular hospital for surgery in time. Untreated entropion of cat eyelids can cause many diseases, of which eye tearing and eye spasms are the most common. When cats feel unwell, they use their claws to scratch and contact with them can lead to infection, inflammation of the eye membrane, increased secretions, and disease. There is a chance of it becoming double-eyed, so the breeder should treat the cat as early as possible.