What is the condition referred to as Spontaneous Chronic Corneal Epithelial Defect (SCCED)?

Spontaneous Chronic Corneal Epithelial Defect (SCCED) is indeed recognized as a canine-specific form of complex corneal ulceration. This condition is characterized by a progressive loss of corneal epithelial cells that occurs without an identifiable inciting cause, leading to a non-healing ulcer on the cornea. In SCCED, the epithelium fails to migrate and adhere properly to the underlying stroma, which can result in a recurrent or persistent corneal ulceration.

In dogs, the underlying causes of SCCED are not fully understood; however, it is hypothesized that there may be a disruption in the epithelial basement membrane and corneal healing mechanisms. This condition is often seen in middle-aged to older dogs and impacts the overall health and vision of affected animals if not treated properly. Treatment options generally include debridement of the abnormal epithelium, application of a topical antibiotic, and possibly the use of contact lenses or surgical techniques aimed at promoting proper healing.

The other options do not accurately describe SCCED. For example, while viral infections and bacterial infections may cause corneal issues, SCCED specifically denotes a chronic condition without such infectious causes. Similarly, acute corneal inflammation is a different condition and would not encaps