There are two reasons for a cloudy film in the eyes of dogs. One is keratitis and the other is cataracts. Generally, severe keratitis will cause corneal ulcers, and then there will be a cloudy film in the eyes. membrane, and cataracts are more common in older dogs. If you find abnormalities in your dog's eyes, you need to send them to the hospital for examination in time to confirm the cause and provide symptomatic treatment. You need to let your dog drink more water, pay attention to his diet, and try to choose light food.