Tian N
Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou.
Zhonghua Yan Ke Za Zhi. 1993 May;29(3):166-8.
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.
中心性浆液性脉络膜视网膜病变（CSC）和遗传性黄斑变性（HMD）的光谱视网膜电图研究发现，与正常对照组相比，CSC在大多数波长下的b波振幅显著降低，HMD在大多数波长下的b波振幅明显低于正常值。患有A型色觉缺陷（CVD）的HMD患者主要表现为480 - 620 nm全光谱的b波振幅降低，而患有I型CVD的患者在480 - 560 nm波长下b波振幅降低。这些差异可能反映了中长波长视锥细胞受损程度的差异。
