方法：将30例60眼健康体检者按年龄分为2组：20～30岁组(15例30眼)和40～50岁组(15例30眼)，按ISCEV标准行全视野闪光ERG检查，比较两组间各参数及变异系数。

结果：两组相比各波隐含期均延长，振幅均下降，尤其在暗适应3.0、明适应3.0及震荡电位振幅表现出有统计学意义(P<0.05)； 各项观察指标中隐含期的变异系数最小，振幅次之，而震荡电位振幅变异系数最大。

结论：40～50岁年龄组与20～30岁年龄组相比，ERG各波隐含期延长，振幅下降，各波隐含期变异系数小。

METHODS: Thirty cases(60 eyes)of healthy physical examinaees were divided into two groups according to age: 20～30 years old group(15 cases, 30 eyes )and 40～50 years old group(15 cases, 30 eyes), F-ERG was recorded according to standard of International Society for Clinical Electrophysiology of Vision(ISCEV), and the parameters and coefficient of variation in the two groups were compared.

RESULTS: Compared with 20～30 years old age group, the implicit time was extended and the amplitude decreased in the 40～50 years old age group, especially amplitude of the dark adaptation of 3.0, light adaptation of 3.0 and oscillatory potentials showed statistical significance(P<0.05); In all the observation indexes, the coefficient of vartation of implicit time was the minimum, the secondary was the amplitude, and the biggest was amplitude of oscillatory potentials.

CONCLUSION: Compared with 20～30 years old age group, the implicit time of ERG is extended and the amplitude is decreased in the 40～50 years old age group. The coefficient of variation of implicit time is the minimum.