My one beagle had red eyes last night. I woke to this morning to take him to the vet. The red eye was gone. What could this have been from? He has an appointment on Thursday so I'm going to talk to the vet then about it.
My first thought was an allergic reaction causing his eyes to be bloodshot. I live in Florida and this is one of the worse allergy seasons we have had in many years. Glad it was resolved this morning but definitely worth bringing to the vet's attention at your Thursday appointment.