Canine non-ulcerative corneal diseases

Corneal Pathologic Responses The normal cornea is clear, and any alteration in clarity signifies pathology. Pathologic changes include corneal vessels, edema, pigment, crystalline deposits, inflammatory cell infiltrates, destruction from degradative enzymes, and scarring. Such changes are usually non-specific and incited by numerous causes. Pathologic responses can occur singularly, but more often several occur simultaneously. Because corneal pathologic responses are usually secondary rather than primary, resolution is best achieved by identification and treatment of the primary cause.