Koyanagi Harada Syndrome generally refers to uveitis, and to confirm the diagnosis of uveitis you need to take an eye examination and laboratory tests. Uveitis is an inflammation of the uvea in the eye caused by infection, immunity, and injury. Patients may experience symptoms such as redness of the eyes, blurred vision, loss of vision, dark shadows in the eyes, and fear of light and tearing. For patients suspected of suffering from uveitis, eye examinations, such as eye ultrasound and fundus image, can be taken under the guidance of the doctor to understand the extent of the patient’s lesions. Patients also need to undergo routine blood tests, biochemical tests, C-reactive protein, blood sedimentation, and tuberculin test, human leukocyte antigen antibody test, etc., so as to clarify the cause of the disease. It is recommended that patients with uveitis seek prompt medical attention to assess their condition and follow medical advice.