Oedema behind the eyes caused by hyperthyroidism is termed

Explanation

Hypothyroidism : Inadequate supply of iodine or impairment in the function of thyroid glands leads to decrease in production of thyroid hormones `(T_(3)&T_(4))` results in hypothyroidism and enlargement of the thyroid gland called Simple goiter.
During pregnancy due to hypothyroidism, defective development of the growing body leads to a disorder called Cretinism. Physical and mental growth. gets severely stunted due to untreated congenital hypothyroidism, stunted growth, mental retardation, low IQ, deafness, and mutism are some characteristics features of this disease.
In adult women it may cause irregular menstrual cycles. Hypothyroidism in adult causes Myxoedema characterized by bagginess under the eyes, puffiness of face, dry skin, slowness in physical and mental activities.
Hyperthyroidism : Over activity of thyroid cancer of the gland or development of nodule of thyroid lead to hyper thyroidism. In adults it causes an abnormal growth leads to a disease called Exophthalmic goiter with characteristically protruded eyeballs: Hyperthyroidism also affects the physiology of the body i.e., increased metabolic rate, nervousness, rapid heartbeat, sweating, increased appetite etc.