Sometimes he can have them open for a while then he closes that one eye which is his right and when he sleeps he closes his eye. For now i’ll just keep an eye on it but if it’s still like that I will take him to the vet! Thank you for the advice!How much time does he spend with it squinted? And how does the eye look in general? They do sleep with their eyes open, sometimes half closed, so it could be that. But we can’t really tell from your photo. If he opens it normal majority of the time then I would keep an eye on it for now. But if you’re still worried you can take him to the vet. A general vet can check/treat eyes are it’s the same across the animals.