COLLIE EYE ANOMALY IN THE LANCASHIRE HEELER

Authors
Citation
Pgc. Bedford, COLLIE EYE ANOMALY IN THE LANCASHIRE HEELER, Veterinary record, 143(13), 1998, pp. 354-356
Citations number
12
Categorie Soggetti
Veterinary Sciences
Journal title
ISSN journal
00424900
Volume
143
Issue
13
Year of publication
1998
Pages
354 - 356
Database
ISI
SICI code
0042-4900(1998)143:13<354:CEAITL>2.0.ZU;2-D
Abstract
An ocular disease ophthalmoscopically identical to collie eye anomaly (CEA) is described in the Lancashire heeler breed of terrier. Survey w ork completed in 1996 demonstrated a significant incidence of 13.7 per cent. The clinical findings together with initial pedigree analysis s upport the accepted view that, in the traditionally affected breeds, C EA is a true pleiomorph which segregates as a recessive Mendelian trai t. Alternative hypothesis speculates that the several lesions ascribed to CEA may occur as separate congenital disease entities, each with i ts own mode of inheritance. However, the combination of bilateral chlo roidal hypoplasia, papillary or peripapillary coloboma and neuroretina l non-attachment in a non-collie breed tends to confirm that these thr ee lesions are indeed individual parts of the one disease. The establi shed appearance of CEA outwith the collie breeds dictates that the nom enclature for this disease is now somewhat inappropriate and that an a lternative name should be considered. It is suggested that the term 'c ongenital posterior segment anomaly' could be adopted.