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  • Title: [A study of spectral electroretinograms of color vision defects due to macular diseases].
    Author: Tian N.
    Journal: Zhonghua Yan Ke Za Zhi; 1993 May; 29(3):166-8. PubMed ID: 8223046.
    Abstract:
    Studies of spectral electroretinograms in central serous chorioretinopathy (CSC) and hereditary macular degeneration (HMD) found that the b-wave amplitudes of CSC for most wavelengths were significantly decreased as compared with normal controls, and the b-wave amplitudes of HMD for most wavelengths were obviously lower than the normal values. Patients of HMD with type-A color vision defects (CVD) showed primarily a reduction of b-wave amplitudes for the full spectrum of 480-620 nm, and patients with type-I CVD a reduction of b-wave amplitudes for wavelengths of 480-560 nm. These differences might reflect differences in damages to the medium-and long-wave length cones.
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