I am a relatively new chinchilla owner (have had my chins about 3 months now), and one of them has matted/clumpy fur around his eyes. I took all 3 of my chinchillas to the vet when I first got them, and the vet said the same chin now having the matted fur was sick with a lung and eye infection. The vet prescribed an oral antibiotic to be given twice daily for a week as well as gentamicin eye drops to be given twice daily for a week. I did this and then took the chin back to the vet to be reevaluated (this was at the end of December). At that point, the vet said the lung infection was gone but the eye infection was still present. She prescribed a repeat dose of eye drops, which I gave. In my opinion, the eye drops didn't do anything for my chin, and he didn't present with any other symptoms of illness, so I didn't take him back to the vet for another follow up visit. He continues to eat, drink, bathe, and play (though he is less energetic than the other two), but the fur around his eyes is noticeably matted/clumped. I'm not sure what to do. I feel like the vet would just prescribe the same eye drops that were given the last two times and didn't seem to work. I'm also not sure how serious of an issue this is, especially since my chin seems to otherwise be healthy. Are chins like humans in the sense that they can get eye boogers from time to time and it's no big deal, or is there something more serious at play here?
Any advice would be helpful. Please help me figure out what's going on with my chin. Thanks.