Jango has been having a very inconsistent eye problem for a few weeks now. His left eye has been shut and open on and off. We took him to a vet and they gave us drops but they haven't helped if anything made it worse because for the last day or two his eye has been consistently shut. he hasn't opened it at all today and his eye is like hard and a little crusty. The vet said they took swabs for a bacterial infection and found nothing. The vet also flushed his eye. They said the next step is to give us oral antibiotics that will adress a systemic infection. They said if that dosen't work then they'd consider taking a blood test but are concerned they wont get enough blood because he is young (6 month old male panther). Do you think this is the right direction to head or should we take an alternative action? Also his behavior is normal except for the eye. He still eats and we put him on the free range normally. Thanks.