Visual Evoked Potentials (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
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