Eye problems in dogs range from mild to serious. The condition of an eye can change quickly. One day it can be normal and the next day it can be red, painful and causing problems. It is extremely important to diagnose the cause of your dog's eye issues at the first sign of trouble. There are many tests to determine the problem, but many diagnoses are made based on the symptoms alone.
Instructions
Examine your dog's eye. Look at the conjunctiva, the pinkish membrane under and around the eye; the eyeball; the tear duct and third eyelid. Note any cuts, redness or objects that may be lodged in the eye.
Call your veterinarian and tell him what you have found. If it is a mild problem the vet may tell you how to treat the eye at home. However, it is more likely that the vet will want to examine the eye and make his own diagnosis. An accurate diagnosis is key to correct treatment.
Let your veterinarian perform diagnostic testing on your dog. He may place temporary dye in the eye to look for ulcers. He may place special paper in the eye to monitor tear production. If he suspects glaucoma, he may check your dog's eye pressure. The vet also will examine the eye thoroughly for physical abnormalities, such as entropion or ectropion (a turning inward or outward of the eyelid).
Take your dog to an ophthalmologist for additional testing if your veterinarian recommends it. There are some tests that general practitioners---such as your vet---aren't able to perform. They need the help of a specialist. Your vet may also recommend this additional help if the treatment he prescribes is not solving the problem.