Field of vision loss due to damage to the visual path | Injury of the visual path

Field of vision loss due to damage to the visual path

  • In lesions (damage) of the optic nerve (optic nerve), one eye goes completely blind if the entire nerve is affected. The other eye continues to see normally regardless. A pupil disorder also occurs.
  • Damage (lesion) in the optic tract results in a homonymous hemianopsy.

    This is a specific form of visual field loss. In each case, retinal areas and the corresponding halves of the visual field fail on one side. If the right tractus fails, the right half of the retina and thus the left half of the visual field fail in both eyes.

    However, complete loss of vision occurs only if the tractus is completely damaged. Otherwise, the failures can vary and do not always have the same shape in both eyes.

  • If there is a failure of the visual cortex (center of vision in the cerebrum), i.e. a part of the cerebral cortex, there is also a homonymous hemianopsia. The failures in the left and right eye have exactly the same shape here. They are therefore congruent.