0 1) ,而b波振幅明显小于女性 (P <0 0 1)。结论 :随年龄增长 ,正常老年人暗适应闪光视网膜电图(F ERG)反应减弱 ,视网膜功能将发生生理性减退 ;白内障所致晶状体混浊将进一步减弱ERG反应并影响视觉功能 ;F ERG最大反应存在着性别差异 Objective: To observe the dark adapted flash electroretinogram (F ERG) of normal aged 5 ~ 75 years old and to evaluate its retinal function. Methods: The maximum response of FERG was measured in 41 elderly (69 eyes) normal subjects. The results were compared with those of the control group (30-40 years old normal subjects) (Senile cataract) with different lens turbidity (according to WHO cataract classification) on the F ERG. Results: The amplitudes of a wave in the maximum response to F ERG in the elderly aged 5 ~ 75 years were smaller than that in the control group (0 0 1

0 1), while the amplitude of b wave was significantly less than that of female (P <0.01). CONCLUSIONS: With age, dark adaptation to flash ERG (F ERG) response is reduced and physiological function of retina is diminished. Lens opacification caused by cataract further weakens the ERG response and affects visual function. The maximum response to F ERG exists Sex differences