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  • Title: Relatively enhanced S cone function in the Goldmann-Favre syndrome.
    Author: Jacobson SG, Román AJ, Román MI, Gass JD, Parker JA.
    Journal: Am J Ophthalmol; 1991 Apr 15; 111(4):446-53. PubMed ID: 2012146.
    Abstract:
    Using electrophysiologic and psychophysical tests that measure rod, midspectral, and S (blue) cone function, we studied four patients with the Goldmann-Favre syndrome, an autosomal recessive vitreoretinal degeneration. With spectral electroretinography, the predominant signal was from the S cones. With dark-adapted perimetry, all patients had severely reduced rod sensitivities and subnormal midspectral cone sensitivities. With S cone perimetry, the patients had normal or subnormal S cone function. Sensitivity differences between S and midspectral cones were significantly different from normal; there was relatively higher sensitivity to S cones compared to midspectral cones throughout the visual field. This relationship of dysfunctional cone mechanisms in the Goldmann-Favre syndrome is similar to that in the enhanced S cone syndrome, a recently identified retinal degeneration with S cone hypersensitivity. The results suggest that the Goldmann-Favre and the enhanced S cone syndromes are linked by a common pattern of retinal dysfunction.
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