Thyroid Eye Disease

Thyroid eye disease (TED) is an autoimmune condition usually associated with thyroid dysfunction and characterised by inflammatory and fibrotic changes in the periocular tissues. It is most commonly associated with hyperthyroidism, but patients with TED may also be hypothyroid or euthyroid, and it does not always present at the same time as the thyroid dysfunction. Patients may present with inflamed eyes, ocular surface discomfort, double vision, and proptosis and may even progress to optic nerve compression and visual loss.