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Figure 1

From: Optimising the glaucoma signal/noise ratio by mapping changes in spatial summation with area-modulated perimetric stimuli

Figure 1The alternative text for this image may have been generated using AI.

Schematic illustrating the change in spatial summation found by Redmond et al.31 GIII: Goldmann III stimulus, currently used in SAP. The distance between normal and glaucoma spatial summation curves for a stimulus of fixed area, varying in contrast is small in this region. ‘A’, ‘AC’ and ‘CR’ indicate an area-modulated, area-contrast modulated, and contrast modulated (within RA) stimulus, where the distance between the spatial summation curves is greater.

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