King Charles Spaniel – Disease Predisposition Posted by Paul | Oct 24, 2010 | Disease Predispositions | 0 | KING CHARLES SPANIEL (ENGLISH TOY SPANIEL) Gastrointestinal conditions Haemorrhagic gastroenteritis Possible breed predisposition Neurological conditions Partial seizures (‘fly-biting’ and ‘star-gazing’) Reported in this breed Ocular conditions Corneal dystrophy Breed predisposition Cataract Inheritance suspected Persistence of the hyaloid system and posterior lenticonus Breed predisposition Pseudopapilloedema Microphthalmia Autosomal recessive inheritance suspected