The main seizure type of this classification of occipital epilepsy is known as autonomic due to the symptoms experienced such as turning pale, feeling ill, and usually vomiting, dilation of pupils, sweating, drooling, and watering of the eyes. This type primarily affects vision and may cause partial vision loss, a sensation of flashing lights, multi-colored spots and shapes, hallucinations (rare), jerking on one side of the body, and headaches during or after the seizure. Calcarine fissure- inferior tends to spread to the temporal lobe and superior can spread to the parietal, fronto-parietal operculum, or frontal lobes Subtypes Gastaut syndrome Parieto-occipital junction- nystagmus and other eye and eyelid movementsĤ. Extra-striate cortex- more complex hallucinations such as people, places, or animalsģ. Primary visual cortex- can cause visual hallucinations and visions, or blindness in a certain area or completelyĢ. There are also subtypes to occipital lobe seizures caused by the spread within the brain and where exactly the seizure is occurring in the occipital lobe, causing variation of symptoms.ġ. Spreading of the seizures can move to the anterior regions, causing symptoms also from the frontal, temporal, and parietal lobes, and secondary hemi convulsions or convulsions. The seizures may also spread to other areas in the brain. Occipital epilepsy can cause many seizures per day and often in multiple clusters. It is not uncommon to experience postictal headache, extremely similar to migraines after these seizures. Triggers can include turning off lights, and going between dark to light or light to dark areas. Episodes in total for children usually last less than 10 minutes, and mainly occur at night. In children, they may also have nausea and vomiting during the episode as well. Oculomotor symptoms include tonic deviation of the eyes, nystagmus (rapid, involuntary movement of the eyes) and repetitive fluttering or closing of the eyelids. These are usually brief, but can be experienced from 1–3 minutes. For visual symptoms, these may include simple to complex hallucinations, blindness, visions, and palinopsia (seeing a visual stimulus after it has been removed from the visual field). Symptoms may happen spontaneously, or be due to a lesion or injured area of the occipital lobe. In occipital epilepsy, the hallmark symptoms include both visual and oculomotor. Since the event is located in the occipital lobe, symptoms may occur spontaneously and include visual stimuli. Generally, this type of epilepsy can have an onset anywhere from 1–17 years old in children, but the patient prognosis is good. Seizures originate in the occipital lobe and account for 5 to 10 percent of all epileptic seizure types. There may be no known cause of this type of seizure, but these epilepsies may occur for a variety of reasons, such as brain tumors, infection, trauma and lesions, and idiopathic onset. is also known as self-limiting focal epilepsy of childhood with occipital paroxysms and early-onset benign partial epilepsy with occipital paroxysms. Other names for the Gastaut type include benign epilepsy of childhood with occipital paroxysms (BECOP) and late-onset occipital epilepsy. There are two main types of this epilepsy, each consisting of focal seizures- Gastaut and Panayiotopoulos (Pan.). It is a disorder with focal seizures in the occipital lobe of the brain. Epileptic seizures are the result of synchronized neural activity that is excessive, and may stem from a failure of inhibitory neurons to regulate properly. Occipital lobe epilepsy is fairly rare, and may sometimes be misdiagnosed as migraine when symptomatic. Occipital epilepsy is a neurological disorder that arises from excessive neural activity in the occipital lobe of the brain that may or may not be symptomatic.
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