The main reason is that the capillaries around the dog's eyes are broken, resulting in congestion of the eyes. It is recommended that the owner consult a pet doctor promptly to see if the degree of eye injury requires surgical treatment. If it is just congestion, it is recommended to use pet-specific anti-inflammatory eye drops for eye treatment, and at the same time, some blood-activating eye drops need to be used together. If the dog's eyes become blind after congestion, it is recommended to undergo surgery in a timely manner.