They may also test the discharge from the area to look for a bacterial or fungal infection. Your vet will also determine if your bird has an upper respiratory infection, since they can cause conjunctivitis.
[header] How to treat conjunctivitis in cockatiels [title] Get your bird examined by an avian vet. [step] The condition can be caused by a lot of different things, such as bacteria, fungi, nematodes, protozoa, and injury. Your vet will examine your bird, including lifting the eyelid.