Iridization, also known as iridescence, refers to the appearance of brightly colored rings around a light source. The iridization of the front of the eye is due to the spectrophotometric effect of a change in the refractive power of the eye, which breaks down the white light from the front into multiple color components depending on the wavelength of the light it contains, resulting in a typical colored halo. Iridescence is a common symptom of eye disease and can be seen in glaucoma, conjunctivitis, corneal edema, incipient cataracts, and other eye diseases. Patients with iridopsia should go to the hospital ophthalmology department to have their fundus examined. Signs such as congestion of the optic papilla, blurred margins, varicose veins, and exudates are seen, and retrobulbar optic neuritis lesions often invade the macular fiber bundle of the optic papilla. The following tests can be used for diagnosis. 1, fundoscopy method: Fundus examination should be performed in a dark room. The patient takes a sitting position, and the doctor takes a sitting or standing position. The fundoscope is held in the right hand on the right side of the patient. Fundus lesions must be observed with the aid of a fundoscope. Fundus lesions often occur in many systemic diseases, such as hypertension, kidney disease, diabetes, pregnancy toxemia, and certain blood disorders. 2. Eyelid examination: Eyelid examination is a type of ophthalmologic examination that should be performed for those with refractive errors (vision in both eyes without correction or with abnormal vision when correction is incorrect). Lid width: When the eyes are open and flat Forward flat vision. The upper lid often covers about 2 mm of the upper edge of the cornea, and the lower lid is located at the level of the lower edge of the cornea. The width of the lid fissure is 6-10 mm, approximately 28-30 mm from the outer canthus to the inner canthus. 3. Eyeball and Orbital Examination Method: This is usually done by looking into the eye in natural light. When examining the eye, attention should be paid to its size, shape, whether it is protruding or posteriorly sunken, and the position of the eye and whether there is any involuntary nystagmus. 95% of tumors can be diagnosed qualitatively, but ultrasound is poor in showing bone tissue, so some tumors cannot show their size and whether they invade the bone wall. Therefore, other imaging examinations such as CT and MRI are needed to make a complete diagnosis.