Is there a disease in cats with different pupils?

Isopia is not a disease, it is a normal physiological phenomenon. Isopsia is mostly found in white cats. Cats with isopic pupils should usually pay attention to eye care and it is best to clean the cat’s eyes regularly with eye wash. When a cat has a yellow-green eye discharge, it may be a bacterial infection. Especially if there is yellow eye discharge along with other abnormal symptoms, take the cat to the doctor promptly.