Visual Evoked Potentials | Satva Neuro Clinic

Visual Evoked Potentials (VEP)

What is Visual Evoked Potential(VEP) ?

A visual evoked potential is an evoked potential caused by a visual stimulus, such as an alternating checkerboard pattern on a computer screen. Responses are recorded from electrodes that are placed on the back of your head.

When is VEP advised?

A doctor may recommend that you go for a VEP test when you are experiencing changes in your vision that can be due to problems along the optic nerve pathway. Some of these symptoms may include:

Loss of vision (this can be painful or non-painful)
Blurred vision
Flashing lights
Alterations in colour vision

What is clinical usefulness of the VEP ?

Although the VEP is very useful for detecting an anterior visual conduction disturbance, it is not specific with regard to etiology. A tumor compressing the optic nerve, an ischemic disturbance, or a demyelinating disease may cause delay in the P100; only additional clinical history and, often, MRI are needed to uncover the etiology.

Electro Encephalo Gram (EEG)

Electroencephalography (EEG) is electrophysiological monitoring method to record electrical activity of the brain. EEG refers to the recording of the brain's spontaneous electrical activity over a period of time, as recorded from multiple electrodes placed on the scalp.

Video EEG

A video EEG (electroencephalograph) records what you are doing or experiencing on video tape while an EEG test records your brainwaves.

Nerve Conduction Study (NCS)

A Nerve conduction study is an electrical test that is used to determine the adequacy of the conduction of the nerve impulse as it courses down a nerve. This test is used to detect signs of nerve injury.

Electromyography (EMG)

Electromyography (EMG) measures muscle response or electrical activity in response to a nerve’s stimulation of the muscle. The test is used to help detect neuromuscular abnormalities.

Repetitive Nerve Stimulation Test (RNST)

RNS is an electrodiagnostic test which is used to assess the neuromuscular junction (NMJ).

Visual Evoked Potentials (VEP)

Brainstem Auditory Evoked Response (BAER)

A brainstem auditory evoked response (BAER) test measures how your brain processes the sounds you hear. The BAER test records your brainwaves in response to clicks or other audio tones that are played for you. The test is also called a brainstem auditory evoked potentials (BAEP) or auditory brainstem response (ABR) test.

Botulinum Toxin Therapy

Botulinum toxin injection therapy (BOTOX therapy) is used to treat dystonia - neuromuscular disorder that produces involuntary muscle contractions, or spasm - that affects muscles that control movement in the eyes, neck, face, limbs, voice box, or the smooth muscle in the bladder. The goal of the therapy is to reduce muscle spasm and pain.

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Visual Evoked Potentials (VEP)

Facilities

Satva Neuro Clinic

Phone:

OPD Hours

E-Mail