PurposeThree related male English Cocker Spaniels (ECS) were reported to be congenitally blind. Examination of one of these revealed complete retinal detachment. A presumptive diagnosis of retinal dysplasia (RD) was provided and pedigree analysis was suggestive of an X-linked mode of inheritance. https://www.ealisboa.com/great-deal-Pentair-Union-Collar-2-U11-200PS-super-offer/