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.
Facilities
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Satva Neuro Clinic
Phone:
+91 98240 28787
OPD Hours
Mon-Sat: 5.30 PM - 7.30 PM
E-Mail
satvaneuro@gmail.com