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Investigating the linkage between mesopic spatial summation and variations in retinal ganglion cell density across the central visual field.

Aoife M L HunterRoger S AndersonTony RedmondDavid F Garway-HeathPádraig J Mulholland
Published in: Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) (2023)
Ricco's area and the number of RGCs underlying RA do not vary significantly across the central visual field in mesopic conditions. However, RA is larger and more similar to the standard perimetric Goldmann III stimulus under mesopic compared with photopic adaptation conditions. Further work is required to determine if compensatory enlargements in RA occur in age-related macular degeneration, to establish the optimal stimulus parameters for AMD-specific microperimetry.
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