How Do Flashing Lights Cause Seizures

Or regular moving patterns.

How do flashing lights cause seizures. Generally flashing lights most likely to trigger seizures are between the frequency of 5 to 30 flashes per second hertz. The frequency or speed of flashing light that is most likely to cause seizures varies from person to person. These seizures may also result in the involuntary jerking of a body part such as an arm or leg and spontaneous sensory symptoms such as tingling dizziness and flashing lights. Currently the world health organization estimates that approximately 50 million people have epilepsy a chronic condition that ranks as one of the most common neurological conditions.

Pse affects approximately one in 4 000 people 5 of those with epilepsy. A small percentage of those nearly 50 million people between 3 to 5 percent have photosensitive epilepsy which means light can trigger seizures and other symptoms of the condition. There are a number of triggers that can provoke a photo convulsive seizure. The likelihood of such conditions combining to trigger a seizure is small.

It is believed that a combination of these factors will trigger the attacks. Causes of the seizures may also include the brightness of the flashing lights the contrast with background lighting the distance between the person and the light source the wavelength of the light and the person s eyes being opened or closed to the source 2. Bold contrasting visual patterns such as stripes or checks overexposure to video games. These seizures have been reported as a result of flashing dance club lights video games and moving images like in a carousel ride.

People with photosensitive epilepsy have seizures that are triggered by. 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.