Empty sella syndrome(ESS)is characterized by herniation of the subarachnoid space into the sella,resulting in varying extent of flattening of the pituitary gland,which in turn causes a series of symptoms.At present,the pathogenesis of primary empty sella syndrome(PESS)is not very clear,but there are hypotheses such as underdevelopment of the sellar diaphragm,increased intracranial pressure and changes in pituitary gland volume.Secondary empty sella syndrome(SESS)is mostly caused by sellar area surgery,infection,radiotherapy and chemotherapy.Although most patients with ESS are asymptomatic,some patients still present with symptoms such as stubborn and intolerable headaches,severe visual field damage and hormonal imbalance that cannot be corrected by medical medicine.For patients with ESS who have visual impairment,it is urgent to clarify the surgical indications and optimize the surgical method to alleviate the symptons.