Thyroid eye disease is due to -

Ans. is 'a' i.e., Thyrotoxicosis o Thyroid eye disease (TED) is also known as Grave's ophthalmopathyo Among patients of TED:# 90% - Thyrotoxicosis# 6% - Euthyroidism# 3% - Hashimoto's disease# 1% - Hypothyroidism