And he actually is vision impaired, so he can't see by himself.

他实际上有视力障碍，自己看不见东西。

Jeffrey Fenton from eSight says his electronic glasses can open up a whole new world for the vision impaired.

来自eSight的杰弗里·芬顿表示，他研制的电子眼镜为视力受损的人打开了新世界的大门。

Athletes are divided into three categories, depending on their functional ability: sitting, standing and vision impaired.

根据运动员的功能能力，运动员分为三类：坐姿、站立和视力障碍。