Chemical injuries to the conjunctiva and cornea can occur when acids, alkali, soaps, shampoos, or topical insecticides are splashed into the eyes. Toxic fumes can also irritate and injure the eyes. The signs are tearing, squinting, and pawing at the eye.
Treatment: Flush the eyes with cool water, artificial tears, or a sterile saline solution, as described in Foreign Bodies in the Eyes. This must be done immediately after exposure to prevent damage to the eye. Flush for a full 15 minutes. After you have completed the flushing, take your dog to the veterinarian for further evaluation and treatment.
Be sure to protect the eyes from shampoos and insecticides when bathing and dipping your dog.