BLUE CONE FUNCTION IN A FAMILY WITH AN INHERITED TRITAN DEFECT, TESTED WITH ELECTRORETINOGRAPHY AND PSYCHOPHYSICS

  • 1 January 1978
    • journal article
    • research article
    • Vol. 17  (5) , 436-441
Abstract
The sensitivity of the blue cone system to low frequency flicker was tested with a psychophysical and an electroretinographical method. With the psychophysical method the subjects, members of a family with an inherited tritan defect, showed no sign of the presence of the blue cone system. With the electroretinogram the sensitivity was also significantly lower than in normal subjects, thus indicating a retinal origin of the tritan defect.

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