Sensitivity loss in early glaucoma can be mapped to an enlargement of the area of complete spatial summation.

@article{Redmond2010SensitivityLI,
  title={Sensitivity loss in early glaucoma can be mapped to an enlargement of the area of complete spatial summation.},
  author={Tony Redmond and David F. Garway-Heath and Margarita B. Zlatkova and Roger S. Anderson},
  journal={Investigative ophthalmology & visual science},
  year={2010},
  volume={51 12},
  pages={
          6540-8
        }
}
PURPOSE The area of complete spatial summation (Ricco's area) is the largest stimulus size for which area × intensity is constant at threshold. The authors sought to investigate whether Ricco's area changes in early glaucoma to account for the decreased visual signal/noise ratio that may accompany retinal ganglion cell loss. METHODS Spatial summation functions were measured, and Ricco's area was determined at four 10° retinal locations in 24 patients with early glaucoma (total deviation at… CONTINUE READING

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