When a seizure occurs there may be damage to the visual nerve. In particular, occipital lobe epilepsy is predominantly visual in its manifestations, and this type of seizure can present with blind spots, hemianopsia, and tonic deviation of both eyes. Occipital lobe epilepsy is one of the many types of epilepsy classified according to the location of the lesion and is relatively uncommon. According to related surveys, about 75% or more of patients with occipital lobe epilepsy have structural abnormalities in neuroimaging, including structural hypoplasia of the occipital cortex, hypoxic-ischemic brain injury at birth, variant Sturge-Weber syndrome, occipital lobe calcification, and hyperglycemia. In contrast, idiopathic benign occipital lobe epilepsy in children may be associated with genetic factors. The main symptoms of occipital lobe epilepsy are visual symptoms, blind spots, hemianopsia, and dark haze, the most common of which are flashes or bright spots with light hallucinations and distortion of visual objects. Of course, some patients also present with symptoms including headache, vomiting, abdominal discomfort and even hallucinations and hallucinations. The seizures can be seen as tonic deviation or clonus of both eyes, eyelid twitching and closure, and occasionally oculoclonic epilepsy persistence. The direction of eye deviation is mostly contralateral to the origin of the seizure, but in a few cases it is ipsilateral. As mentioned above, epilepsy can affect vision. Of course, if the above diagnosis occurs must be carried out in a professional and regular hospital, it is best to achieve early detection, early diagnosis and early treatment in order to obtain the best treatment results.