Graves' disease, the leading cause of hyperthyroidism, is a condition in which the thyroid gland produces excessive hormones, accelerating the metabolism. It is seen more often in women, and seems to be triggered both by genetics and stress. It is treated with radioactive iodine and antithyroid medications and rarely has long-term consequences. Although rare, eye trouble -- in the form of inflamed and swollen eye muscles and tissues that can cause the eyeballs to protrude from their sockets -- is a distinguishing complication of Graves' disease. Follow the links below to find WebMD's comprehensive coverage about Graves' Disease, its symptoms, how Graves' Disease is diagnosed and treated, and much more.