Border Collie blue eyes are a sign of night blindness, which is caused by iris problems. If Border Collie still has blue eyes when he grows up, it is best not to breed, otherwise it will be passed on to the next generation. Generally, blue eyes are more common in meteorite border collies, while black and white lace collies are rarer. When choosing a border collie, you need to pay attention to the eyes. If the dog suffers from night blindness, try not to take the dog out at night, and there must be a certain amount of light indoors.