Is a bulging of the eye anteriorly out of the orbit.
Abnormal protrusion of the eyeball.
Prominence of the eyes most commonly found in patients with hyperthyroidism caused by Graves’ disease. Exophthalmos may affect one or both eyes, may be apparent before the overactive thyroid gland develops, and may appear for the first time after successful treatment of the hyperthyroidism.
Another word for exophthalmos.
Exaggerated protrusion of the eyelids, hyperthyroidism; exophthalmic goiter.
Abnormal protrusion of the eyeball.
An abnormal protrusion or proptosis of the eyeball from the orbit.
Abnormal protrusion of one or both eyeballs, due to goiter, injury, or disease of the eyeball or socket. Treatment depends on the cause.
Outward bulging of the anterior surface of the eye with a startled, staring expression) when presentation is unilateral, etiology is often a tumor behind the eye, but when presentation is bilateral, the patient usually has hyperthyroidism.
Abnormal bulging of one or both eyes; also known as proptosis. The most common cause is a hyperactive thyroid gland (hyperthyroidism), which swells tissues in the eye socket and pushes the eyeball forward. The condition can also result from bleeding behind the eye (usually from injury), inflammation or infection of the eye socket, tumors, or blood vessel abnormalities that cause blood to back up behind the eye. A bulging eye requires prompt professional evaluation.
Protrusion of the eyeballs in their sockets. This can result from injury or disease of the eyeball or socket but is most commonly associated with overactivity of the thyroid gland.
Exophthalmos, or proptosis, refers to forward displacement of the eyeball and must be distinguished from retraction of the eyelids, which causes an illusion of exophthalmos. Lid retraction usually results from activation of the autonomic nervous system. Exophthalmos is a more serious disorder caused by inflammatory and infiltrative changes in the retro-orbital tissues and is essentially a feature of Grave’s disease, though it has also been described in chronic thyroiditis. Exophthalmos commonly starts shortly after the development of thyrotoxicosis but may occur months or even years after hyperthyroidism has been successfully treated. The degree of exophthalmos is not correlated with the severity of hyperthyroidism even when their onset is simultaneous. Some of the worst examples of endocrine exophthalmos occur in the euthyroid state and may appear in patients who have never had thyrotoxicosis; this disorder is named ophthalmic Graves’ disease. The exophthalmos of Graves’ disease is due to autoimmunity. Antibodies to surface antigens on the eye muscles are produced and this causes an inflammatory reaction in the muscle and retro-orbital tissues.