Visual Field Defects

Visual Field Defects 2018-01-30T16:37:18+08:00
  • Characterize the visual field defect
    • Neglect: with both eyes open, move both hands and ask the patient which is moving
    • Define field defect with a red hat pin
    • Monocular vision loss (complete retinal vein / retinal artery occlusion, vitreous haemorrhage, ischaemic optic neuropathy – giant cell arteritis, optic neuritis – demyelination)
    • Bitemporal hemianopia (optic chiasm – pituitary adenoma, craniopharyngioma, anterior communicating artery aneurysm, pituitary apoplexy)
    • Homonymous hemianopia with macula involvement (left optic tract)
    • Stroke, space-occupying lesions, trauma may all cause:
      • Superior quadrantinopia (temporal lobe)
      • Inferior quadrantinopia (parietal lobe)
      • Homonymous hemianopia with macula sparing (occipital lobe)
  • Other things to look out for:
    • Scars indicating previous craniectomy (previous stroke)
    • Scars indicating previous craniotomy (previous trauma or surgery to remove tumour)
    • Pronator drift for pyramidal weakness
    • Dysphasia to check for left hemispheric involvement (especially in right inferior quadrantinopia)

Visual Field Defects

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This Sliding Bar can be switched on or off in theme options, and can take any widget you throw at it or even fill it with your custom HTML Code. Its perfect for grabbing the attention of your viewers. Choose between 1, 2, 3 or 4 columns, set the background color, widget divider color, activate transparency, a top border or fully disable it on desktop and mobile.