Breed health concerns may include progressive retinal atrophy, pyloric stenosis, sebaceous gland
tumors, keratocanthoma, hydrocephalus, intervertebral disc disease, entropion (usually lower
lids), distichiasis, ectopic cilia, caruncular trichiasis, keratoconjunctivitis sicca («dry
eye»), prolapse of the gland of the nictitating membrane («cherry
eye»), refractory corneal ulceration and pigmentary keratitis and urolithiasis (calcium oxalate, struvite, silica).