Good video on understanding what a Visual Field is exactly.

Understanding What is a Visual Field

EyeMDs and Neurologist use visual fields to give us information about the nerves of the eye and the entire visual pathway. We can sometimes detect subtle nerve or brain changes or damage before a patient has any symptoms.

Understanding what your field of vision is exactly can be difficult to explain clearly or in the limited time one has with patients.

Below is a great video on what the visual field is and how it relates to the eye, the optic nerve, and it’s connection to the brain.

The later part about the LGN is likely more information than most patients need to understand.

More information:

Great article:

Localization of field defects and disorders of higher cortical visual function
Field Defect or Syndrome Localization
Unilateral central scotoma Optic nerve
Bitemporal hemianopsia Chiasm
Junctional defect (ipsilateral central scotoma and a contralateral superior temporal field cut) Anterior chiasm
Central temporal scotomas Posterior chiasm
Incongruous homonymous hemianopsia, afferent pupillary defect, and bow-tie atrophy Optic tract
Homonymous sectoranopia Lateral geniculate nucleus
Incongruous homonymous hemianopsia Lateral geniculate nucleus
Homonymous upper quadrant defect “pie in the sky” Temporal lobe
Homonymous defect, denser inferiorly Parietal lobe
Gerstmann syndrome and a homonymous defect, denser inferiorly Parietal lobe
Complete homonymous hemianopsia Not well-localized
Homonymous upper quadrantanopsia with macular sparing Occipital lobe (lower bank)
Homonymous lower quadrantanopsia with macular sparing Occipital lobe (upper bank)
Isolated homonymous defect (macular sparing) without other neurologic findings Occipital lobe
Anton syndrome (cortical blindness) Bilateral occipital lobe lesions
Balint syndrome Bilateral occipitoparietal lesions
Alexia without agraphia Left occipital lobe and angular gyrus
Central achromatopsia Bilateral occipito-temporal lesions

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