electrophysiological
Electrical Activity Testing
Plain-language definition
Tests measuring the electrical responses of the visual system (ERG, VEP, EOG). Used when structural imaging is normal but function is impaired.
Where this term comes up
“Published as a letter in the Journal of Ophthalmic and Vision Research in 2012, this case highlights the importance of electrophysiological testing when clinical examination alone cannot explain visual dysfunction in HIV-positive patients.”
Publication · Bilateral Progressive Vision Loss in Noninfectious HIV Retinopathy without Infectious Retinitis
“Visual recovery following acute optic neuritis -- a clinical, electrophysiological and magnetic resonance imaging study.”
Publication · Neuroimaging in Ophthalmology
- Category
- Test or diagnostic term
- Also written as
- No alternate forms listed.
Diagnostic terms describe tests, measurements, imaging, or exam techniques used to understand eye and neuro-ophthalmic problems.
Related glossary terms
- MRI
Magnetic Resonance Imaging
- bilaterally
On Both Sides
- hemorrhage
Bleeding
- ERG
Electroretinogram
- fundoscopy
Exam of the Back of the Eye
- gadolinium
MRI Contrast Dye
A note on medical context
A glossary definition can explain a word, but it cannot tell you whether a symptom or test result is serious. If this term came from an article, use the full article and your clinician's guidance for context.