Pet Health: Corneal Dystrophy in Dogs

Corneal dystrophy describes conditions that are primary to the cornea of the eye. They appear as a bilateral opacity that is closely symmetrical, and does NOT become inflammed or vascularized. Although it is thought to be passed down through generations, the exact cause in individuals is rarely known.

Corneal dystophy attacks the multiple layers of the cornea, either anteriorly or posteriorly. Once present it can remain stationary, or it can progress to the point of dominating the entire cornea resulting in lowered visual acuity and potentially blindness. Note: While the opacities tend to lower visual acuity in humans, there is little proof to suggest that the same result happens in dogs. (This is a scenario I do not understand, because an opacity is an opacity no matter what eye is trying to see through it. Unless of course...the dog makes up for the problem by using it's other, more finely-tuned, senses.)

As a pet owner or veterinary professional, it is important to understand that corneal dystrophy has various forms, some causing little to no pain for the patient, while others can be extremely painful. The trick in dealing with any type of dystrophy is deciding which one needs treatment. For example, one of the more painful types form tiny bullae that constantly rupture and heal causing considerable discomfort. Some of the discomfort can be treated with topical steroids, osmotic agents, or even contact lenses. An actual "cure" remains illusive.

In my Tory's case...I pray for the less severe.

For more information, please refer to http://www.vetmed.ucdavis.edu/courses/vet_eyes/conotes/con_chapter_9.html