Corneal dystrophy describes a group of corneal disorders, likely hereditary in etiology, in which cholesterol, phospholipids & free fatty acids accumulate within the cornea(s). Lesions appear as sub-epithelial to stromal grey/white, crystalline, relucencies
within the corneal stroma. Multiple patterns of corneal dystrophy have been described, many with breed-associations. These may include axial or peripheral, ovoid to circular lesions. Evaluation of underlying thyroid and adrenocortical function as well as systemic lipid and cholesterol levels lipoprotein, glucose, calcium, phosphorous may be indicated in select cases, in order to rule out underlying metabolic abnormalities.