Hyperthyroidism is short for hyperthyroidism, and hyperthyroidism may cause protruding eyes. The ocular manifestations of hyperthyroidism are divided into two categories: simple protrusion, which is associated with increased sympathetic excitability due to thyrotoxicosis, and infiltrative protrusion, which is known as Graves’ ophthalmopathy. Simple proptosis includes the following manifestations: mild protrusion of the eyeball, widening of the eye fissure, and reduced transient gaze. In infiltrative proptosis, the eyeball protrudes significantly, exceeding the upper limit of the reference value for eyeball protrusion by more than 3 mm. Patients with Graves’ ophthalmopathy complained of foreign body sensation, distension, photophobia, tearing, diplopia, strabismus, decreased visual acuity, and on examination, there was eyelid swelling, conjunctival congestion and edema, and limited eye movement, or in severe cases, fixation of the eyeball. Incomplete eyelid closure, corneal exposure and the formation of corneal ulcers, total ophthalmia, and even blindness. It is recommended that patients with hyperthyroidism consult a doctor in time and follow the doctor’s instructions to carry out scientific and effective treatment, so as not to lead to serious consequences.