Rod-cone interaction in flicker perimetry.
نویسندگان
چکیده
منابع مشابه
Rod-cone interaction in flicker perimetry.
We have assessed the influence of the rod system on cone flicker sensitivity during flicker perimetry. For temporal frequencies above 18 Hz extrafoveal cone-mediated flicker thresholds for a white test stimulus are as much as 1.5 log units lower when measured against a large background light that saturates the rods than when measured in darkness. Following a Ganzfeld bleach extrafoveal cone fli...
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In an attempt to determine whether the relative contributions of magno-mediated and parvo-mediated inputs to the cortex are significantly altered in the transition from cone to rod vision, VEPs were recorded at different luminance levels (photopic to scotopic) for 2Hz square-wave, isochromatic flicker. The VEP mass response appears capable of reflecting major parvo-mediated contributions even a...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1984
ISSN: 0007-1161
DOI: 10.1136/bjo.68.5.303