The most common
eye diseases in the breed are cataracts, distichiaisis, persistent pupilary membrane, and iris coloboma,
with Progressive Rod Cone Degeneration (PRCD), a form of progressive retinal atrophy (PRA),
Collie Eye Anomaly (CEA), Canine Multifocal Retinopathy (CMR), and glaucoma have been seen but are rare.