Thyroid eye disease is due to-: (A) Thyrotoxicosis, (B) Hypothyroidism, (C) Euthyroidism, (D) Hashimoto's disease
Answer is A. *Thyroid Opthalmopathy, also called thyroid orbitopathy, is a disease of the orbit seen in Graves diseases (thyrotoxicosis), Therefore also called Graves ophthalmopathy. Ref: Kanski's Clinical Opthalmology 8th/e p.82