I had a Tangerine who had the same problem. It's called Enigma syndrome. Watch it carefully and have it housed by itself. Mine had a seizure and died 3 days ago. We had her for 2 years with no seizures but keep an eye on yours. During seizures they lose partial control and things like substrate end up lodged in their mouths and can clog the epiglottis. As for the eye problems- another one of mine has an eye irritation caused from shedding and has been squinting. We're using gel eye drops- I forgot which kind it is but it has to be a specific kind- research it though. It works.