Abnormal protrusion or bulging of one or both eyes from their sockets. It is most commonly associated with hyperthyroidism, particularly Graves' disease, but can result from other orbital conditions.
From Greek 'exo-' (outside) + 'ophthalmos' (eye), literally meaning 'eye outside.' The term has been used in medical literature since ancient times, with Hippocrates describing the condition in relation to thyroid disorders.
Exophthalmos is like the eyes trying to escape their sockets, and in Graves' disease, it's caused by the eye muscles literally swelling up like sponges soaking up fluid! The condition can be so severe that patients can't close their eyes completely, leading to the paradox of having 'staring' eyes that are actually at risk of drying out.
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