Understanding Swollen Eyes: Causes, Symptoms, and Treatments Swollen eyes, a common condition experienced by many, can be both uncomfortable and unsightly. This condition, characterized by puffiness or swelling around the eyes, can stem from various causes, ranging from mild to severe. Understanding the underlying reasons, associated symptoms, and effective treatments is crucial for managing and alleviating this condition. Causes of Swollen Eyes Allergies : One of the most common causes of swollen eyes is allergies. Pollen, dust, pet dander, and certain foods can trigger an allergic reaction, leading to inflammation and swelling around the eyes. Infections : Bacterial or viral infections, such as conjunctivitis (pink eye), can cause significant swelling and discomfort. Other infections like blepharitis (inflammation of the eyelids) can also lead to swollen eyes. Crying : Tears, whether from emotional stress or irritation, contain more water and less salt than the ...