Photosensitive epilepsy
Photosensitive epilepsy
Photosensitive epilepsy (PSE) is a form of epilepsy in which seizures are triggered by visual stimuli that form patterns in time or space, such as flashing lights, bold, regular patterns, or regular moving patterns.
Pronunciation
Pho·to·sen·si·tive epi·lep·sy
Etymology
The term "photosensitive epilepsy" is derived from the Greek words "photo" (light), "sensitive" (responsive to stimuli), and "epilepsy" (seizure disorder).
Definition
Photosensitive epilepsy is a type of epilepsy that is triggered by certain visual stimuli, such as flashing lights or contrasting light and dark patterns. People with this condition may have seizures while watching television, playing video games, or experiencing flashing lights in situations such as discos or when driving at night.
Symptoms
Symptoms of photosensitive epilepsy can vary but often include seizures that are characterized by a loss of consciousness, convulsions, and sometimes loss of bladder control. Other symptoms can include temporary confusion, a staring spell, uncontrollable jerking movements of the arms and legs, and loss of consciousness or awareness.
Causes
The exact cause of photosensitive epilepsy is unknown, but it is thought to be genetic in nature. The condition is more common in females and usually begins in childhood or adolescence.
Treatment
Treatment for photosensitive epilepsy typically involves avoiding triggers such as flashing lights or certain patterns. Medications can also be used to help control seizures. In some cases, surgery may be necessary.
Related Terms
External links
- Medical encyclopedia article on Photosensitive epilepsy
- Wikipedia's article - Photosensitive epilepsy
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