Patients with congenital nystagmus who have refractive errors can wear glasses to correct the refractive error, depending on the type of refractive error, but the nystagmus cannot be eliminated by wearing glasses. Nystagmus cannot be treated with eyeglasses, but patients with nystagmus who have a combination of refractive errors, such as nearsightedness, farsightedness, or astigmatism, can wear eyeglasses to correct them and improve their vision. Patients with nystagmus who have an intermediate band, which means that the nystagmus can be reduced when the eyeball is turned in a certain direction, can be considered for surgical treatment. In most cases, nystagmus is caused by congenital developmental abnormalities, in which the patient’s eyeballs flutter involuntarily, and can be categorized into horizontal nystagmus, vertical nystagmus, and rotational nystagmus according to the direction of the flutter. It is recommended that patients with nystagmus should consult a doctor promptly to assess their condition and follow the doctor’s instructions for treatment.