Hello! We just adopted a Russian Blue last week and noticed yesterday that there was some eye discharge in one eye. He has it today too. We wiped it off. He also is squinting that eye. He seems okay besides the eye. We do have a vet appt for this Friday for a check-up. Can we wait until then as long as his eye doesn't get worse? What could be causing the eye discharge? Thanks so much for your help and have a Happy Labor Day!