Dogs with blue film on their eyes will not be blind. The cause of blue film on dogs’ eyes may be keratitis, conjunctivitis or cataracts, so it is best to go to the hospital for examination and treatment. Cataracts generally occur in older dogs, and normal dogs will not easily develop cataracts. Keratitis and conjunctivitis are more likely to be cured and are easier to cure. You can use anti-inflammatory eye drops to help the dog instill them on time. At the same time, pay attention to the diet and try to be as light as possible to prevent the dog from getting angry.