Sclerositis is an inflammatory disease associated with immune factors that occurs in the scleral tissue and is characterized by recurrent episodes. Depending on the depth of the involved tissue, it can be divided into superficial and deep sclicitis; depending on the location, it can be divided into anterior sclicitis and posterior sclicitis. In superficial sclicitis, most patients experience eye redness and mild eye pain, and the eye shows significant, deep conjunctival congestion with a dark red color; after exclusion of infectious factors and broken surface tissues, corticosteroid eye drops and creams need to be used appropriately. For deep scleritis, the inflammation invades the scleral stroma and is divided into anterior scleritis and posterior scleritis, with the equatorial part as the dividing line. Especially for posterior sclicitis, it is relatively undetectable due to its deep location. The main manifestation will be ocular pain, which is dull and often felt at night and when the environment is quiet, and there is significant ciliary pressure pain when the eye is touched with finger pressure. Once diagnosed, the use of eye drops alone is not sufficient. Early oral administration of non-steroidal anti-inflammatory drugs as well as hormonal types of medications is generally required and can provide relief in most patients, and immunosuppressive drugs are also required in patients with concomitant systemic immune diseases. Sclerositis, which may be accompanied by other systemic immune system disorders, requires further examination of various immune function indicators. Active search for the cause of the disease is necessary to achieve good treatment results and to prevent recurrence.