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

如果你的眼睛是棕的，那么你的虹膜前网状的。

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

如果你你的眼睛是蓝或蓝灰的，那么网状层上根本就没有多少。

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的前层所覆盖，而这就是因人而异的地方。