If you have brown eyes, the cells in the meshy front of your iris are full of pigment.

如果眼睛是棕色，那虹膜前网状细胞会满色素。

If you have blue, or blue-grey, there's not much pigment in that meshy layer at all.

如果眼睛是蓝色或蓝灰色，那网状层上根本就没有多少色素。

But that's totally covered by a meshy front layer, and that's where things vary from person to person.

但它完全被一个网状前层所覆盖，而这就是因人而异地方。