Conclusion the functional lesion in high myopia appeared earlier than the visiable degenerative state of fundus,the lesion were occured in different layers in same time,so EOG and ERG should be combined to use.

• 说明高度近视眼功能上的损害早于眼底的改变，这种损害是多层次同时发生的，对高度近视眼应联合使用多种视觉电生理的检查方法。