[Skip to Navigation]
[Skip to Navigation Landing]
July 1973

Light-Induced Increase in Amplitude of Electro-oculogram: Evoked With Blue and Red Lights in Totally Color-Blind and Normal Humans

Author Affiliations

Turku, Finland
From the departments of ophthalmology (Dr. Elenius) and oto-rhino-laryngology (Dr. Aantaa), University of Turku, Turku, Finland.

Arch Ophthalmol. 1973;90(1):60-63. doi:10.1001/archopht.1973.01000050062013

Blue and red lights chosen to evoke equally large increases in the amplitude of the electro-oculogram (EOG) in the normal human eye were used to test eyes with defective cone function. It was found in five totally color-blind subjects that the response to red light was below the normal range, whereas the response to blue light was within the normal range. The results indicate contribution of both rod and cone mechanisms to the generation of the light-induced response of the normal human EOG.