It is suggested that the term 'congenital posterior segment anomaly' could be adopted. The dog was diagnosed to have a lymphoma involving the spinal cord. Histology of the globes confirmed severe choroidal hypoplasia and optic disc coloboma in both eyes. In spite of treatment, the dogs condition worsened and the animal was therefore euthanized. It is an inherited disease in dogs, with recessive mode of inheritance, therefore controlled by genes which are expressed in offspring only when inherited from both parents. These lesions closely resembled the ophthalmoscopic features of Collie eye anomaly (CEA). The established appearance of CEA outwith the collie breeds dictates that the nomenclature for this disease is now somewhat inappropriate and that an alternative name should be considered. Collie Eye Anomaly (CEA), also known as Choroidal Hypoplasia, occurs in a number of breeds of dogs, one of which is the Border Collie. However, the combination of bilateral chloroidal hypoplasia, papillary or peripapillary coloboma and neuroretinal non-attachment in a non-collie breed tends to confirm that these three lesions are indeed individual parts of the one disease. Alternative hypothesis speculates that the several lesions ascribed to CEA may occur as separate congenital disease entities, each with its own mode of inheritance. The clinical findings together with initial pedigree analysis support the accepted view that, in the traditionally affected breeds, CEA is a true pleiomorph which segregates as a recessive Mendelian trait. CEA usually causes the blood vessels inside the eye, which provide blood flow to the retina, to be underdeveloped. It is a genetic disease that some dogs are born with. Survey work completed in 1996 demonstrated a significant incidence of 13.7 per cent. Collie eye anomaly (CEA), also known as collie eye defect, is an eye disease that affects the development of a dog's eye and impairs its vision. An ocular disease ophthalmoscopically identical to collie eye anomaly (CEA) is described in the Lancashire heeler breed of terrier.
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