10 Surprising Reasons Your Dog's Eyes Are Swollen
3. Eye Injuries and Trauma

Physical trauma to the eye is a common cause of swelling in dogs. Injuries can occur from rough play, running through dense vegetation, or fighting with other animals. Even a small scratch on the cornea can lead to significant swelling and discomfort. Blunt trauma can cause internal bleeding or damage to the eye structure, leading to swelling and pain. Symptoms of an eye injury include excessive tearing, squinting, and visible wounds or abrasions. Immediate veterinary attention is crucial to assess the extent of the injury and prevent complications like infection or vision loss. Treatment may involve topical antibiotics, anti-inflammatory medications, or, in severe cases, surgical intervention. Protecting your dog from potential hazards and monitoring their play can help prevent such injuries.
4. Foreign Bodies and Irritation

Foreign bodies such as dust, sand, or plant material can easily find their way into a dog's eyes, causing irritation and swelling. Dogs are naturally curious and often poke their noses into places where debris can enter their eyes. Once lodged, these foreign bodies can cause significant discomfort, leading to excessive blinking, redness, and swelling. In some cases, the foreign body may be visible, but often it requires a thorough examination to detect. Flushing the eye with a saline solution can sometimes remove the irritant, but persistent issues should be evaluated by a veterinarian. Preventing exposure to environments where foreign bodies are prevalent can help reduce the risk of eye irritation in dogs.