The whites of the dog's eyes are dark brown

Dark-brown whites next to the dog’s eyeballs may be pigmentation or conjunctivitis. It is best to take the dog to the pet hospital for examination to confirm the cause; if it is pigmentation, it will generally not affect the dog’s vision. The dog will not feel pain; if it is conjunctivitis, the dog can be given antibiotic eye drops.
Tips:
Pay attention to your dog’s eye hygiene and give your dog more vegetables and fruits.