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Glite Dictionary
quadrantanopia

quadrantanopia

9.9
Loss of sight in one quarter of the field of vision after brain damage
  • noun
  • /ˌkwɒdrəntəˈnoʊpiə/
  • Specialized
: cuadrantanopía
  • The patient's visual exam revealed quadrantanopia in the upper right corner of his field of vision.

Examples

  • Damage to the optic radiation often results in quadrantanopia.

  • The patient was diagnosed with quadrantanopia after the stroke.

  • After her stroke, she experienced partial quadrantanopia that made it difficult to read.

  • Many people with quadrantanopia struggle with depth perception.

  • After her stroke, she experienced partial quadrantanopia, making it hard for her to read clearly.

  • The patient's visual exam showed quadrantanopia affecting his lower left field of vision.

  • People suffering from quadrantanopia may find it challenging to navigate their surroundings.

Surface Forms

quadrantanopia singular
quadrantanopias plural

Morphology

quadrantanopia = quadrant + anopia (opaque) = quadrant + anopia

Although the components mean 'quarter' and 'loss of vision', the medical combining form 'anopia' (and the mixed technical formation) is not known to average learners, so the meaning is not readily inferable.

Etymology

Quadrantanopia begins with quadrant ('a quarter') and adds an- ('without') plus -opia ('sight'). So it means 'no sight in one quarter' of what you can see, which is why the word describes loss of vision in one quarter of the visual field.