The Rough Collie (also known as the Long-Haired Collie) is a long-coated dog breed of medium to large size that, in its original form, was a type of collie used and bred for herding sheep in Scotland. The Rough Collie (also known as the Long-Haired Collie) is a long-coated dog breed of medium to large size that, in its original form, was a type of collie used and bred for herding sheep in Scotland. Originating in the 1800s, Rough collies should show no nervousness or aggression, and are generally great with children and other animals. However, they must be well socialised to prevent shyness. They are medium to large sized dogs, and they generally need a house instead of being in a small apartment. Collie eye anomaly (CEA), a genetic disease which causes improper development of the eye and possible blindness, is a common ailment in the breed.