That number of less than 15% of blind people have no light perception–it surprised me.

少于15%的盲人没有光感-这让我感到惊讶。

You know, it's only something like 10% or 15% of blind people have no light perception.

您知道， 只有大约10%或15%的盲人没有光感知。

But those who have no light perception at all… well, let's listen now to Debra Skene, Professor of Neuroendocrinology at the University of Surrey.

但有些盲人一点光感也没有。我们来听听萨里大学神经内分泌学教授黛布拉·斯科纳的看法。