title: Lack of spatial remapping of the visual field surrounding a monocular scotoma.
abstract: BACKGROUND
  Changes in cortical receptive fields following deafferentation raise the question of whether interruption of optic nerve fibres engenders spatial distortion in the region bordering the resulting scotoma.
  
  
  METHODS
  The regularity and uniformity of the spatial metric surrounding a monocular Bjerrum scotoma were studied in both the affected and unaffected eyes of a glaucoma patient, using rigorous psychometric measurements and Amsler grid observations.
  
  
  RESULTS
  No expansion of distances towards the edge of the scotoma was found; however, such a change occurs at the border of the normal blind spot, though not binocularly and not in the corresponding field of the other eye.
  
  
  CONCLUSIONS
  The findings argue against cortical reorganisation following monocular retinal deafferentation in the adult.
authors.affiliation: Division of Neurobiology, University of California, Berkeley, CA 94720, USA. gwestheimer@berkeley.edu
authors.forename: Gerald
authors.initials: G
authors.lastname: Westheimer
mesh_terms: D000368:Aged; D001931:Brain Mapping / Q000379:methods*; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009473:Neuronal Plasticity / Q000502:physiology*; D011594:Psychometrics; D012607:Scotoma / Q000175:diagnosis* / Q000503:physiopathology; D013028:Space Perception / Q000502:physiology*; D015348:Vision, Binocular; D014793:Visual Cortex / Q000503:physiopathology*; D014794:Visual Fields