Many parents have heard the story of a child who, after a fever and high fever, is blind, but whose eyes look fine on the outside. This is commonly known as “blindness”. Although the chance of this happening is very small, many parents are still afraid of their children’s fever, fearing that the fever will damage their brain, and that the loss of vision after a fever is really related to brain damage. Usually fever does not damage the brain unless the fever is caused by encephalitis or meningitis, so there is no need to worry too much. The term “cortical blindness” is unfamiliar to most parents, but it is not uncommon in children with brain injury or post-encephalitis, and is the main cause of vision loss in children. It is a major cause of vision loss in children. Cortical blindness is caused by damage to the visual centers of the occipital cortex due to hypoxia or inflammation, and can also occur in some children with epilepsy due to ongoing brain damage caused by poor seizure control. The disease is characterized by absence of light perception, complete loss of visual acuity, normal fundus, and no blink reflex to stimuli such as bright light and rapid hand approach to the eye, but normal pupil-to-light reflex. Visual evoked potentials and cranial CT and MRI are commonly abnormal. Cortical blindness is partially reversible and is called temporary cortical blindness. There are not many ways to treat cortical blindness. From the summary of scientific research papers and the treatment experience of our rehabilitation department, the effect of acupuncture on the oculomotor and occipital cortical visual sensory areas is relatively good, but the treatment effect varies greatly, and the degree of recovery can only depend on the clinical outcome. Due to the difficulty of treatment and the serious consequences caused by this disease, physicians and parents must pay great attention to it. For infants who still have no obvious gaze or pursuit of vision after 2 months, they must undergo relevant auxiliary examinations, and early detection and treatment is an effective way to reduce visual disability.