Ophthalmology
Researchers at University of Erlangen publish new data on ophthalmology
Published in Medical Imaging Week, March 6th, 2010
In this recent study, researchers in Erlangen, Germany conducted a study "To test the hypothesis that electroretinograms (ERGs) reflect luminance activity when measured at high temporal frequencies and chromatic activity when measured near 12 Hz. The authors measured the responses to stimuli in which the output of red and green light-emitting diodes was modulated in counterphase at different ratios, varying the luminance content in the stimulus while keeping the red-green chromatic contrast and its phase constant."
"The high temporal frequency electroretinography was determined mainly by the luminance contrast. At 12 Hz, electroretinographic response amplitudes and...
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Source: Medical Imaging Week (2010-03-06)
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