Why Does My Dog Have Sore Eyes?

There are many reasons of sore eyes in dogs e.g. Entrapped foreign material like hair, allergy to smoke, inflammation of the conjunctiva caused by bacteria or virus, glaucoma, and problems in the eyelids and eyelashes etc.  Rinsing of eyes with water can help you a lot but more better option is to take him to vet for complete eye examination and treatment.