What limits detection and resolution of short-wavelength sinusoidal gratings across the retina?

Vision Research
R S AndersonShaban Demirel

Abstract

Peripheral resolution acuity for achromatic gratings is known to be limited by the density of the underlying ganglion cell sampling array. After confirming isolation of the short-wavelength sensitive (SWS) system using chromatic adaptation methods, we wished to determine if resolution is limited by blue/yellow ganglion cell sampling (evidenced by a superiority of detection over resolution acuity and the perception of aliasing) and thus directly related to SWS-driven ganglion cell density. We measured detection and resolution acuity between 0 degrees and 35 degrees, using blue sinusoidal gratings superimposed on a yellow adapting background which ranged in intensity from 2.5 to 4.7logTrolands. At all locations, a break could be observed in the acuity vs. illumination curves followed by a plateau. Detection and resolution acuity were the same for low background intensities, but resolution acuity was lower than detection at higher intensities, accompanied by observations of chromatic aliasing. SWS resolution is sampling-limited across the retina and agrees well with predicted performance based on anatomical estimates of small bistratified ganglion cell density.

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Citations

Dec 9, 2003·Visual Neuroscience·Alexa I RuppertsbergMarco Bertamini
Oct 3, 2002·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·R S AndersonR O Beirne
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Aug 6, 2005·Progress in Retinal and Eye Research·Roger S Anderson
Apr 12, 2016·Vision Research·Daniel R Coates, Susana T L Chung
Oct 22, 2003·Vision Research·Angel VassilevRoger S Anderson
Dec 31, 2002·Vision Research·Margarita B ZlatkovaRoger S Anderson
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Feb 19, 2016·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Abinaya Priya VenkataramanLinda Lundström
Jun 5, 2021·Neuroscience of Consciousness·Andrew M Haun
Jul 16, 2021·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Margarita B ZlatkovaRoger S Anderson

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