Thyroid Eye Disease (TED) is an autoimmune condition that affects the eyes and is commonly associated with Graves' disease, a disorder that causes hyperthyroidism. In TED, the immune system mistakenly attacks the tissues around the eyes, leading to inflammation and swelling. This can result in symptoms such as bulging eyes, dryness, and discomfort. The condition can also affect vision, causing double vision or difficulty moving the eyes. Treatment options for TED may include medications to reduce inflammation, radiation therapy, or surgery in severe cases. Early diagnosis and management are important to prevent complications and improve quality of life.