Each cluster includes a pair of eyes with a sophisticated lens, retina, iris and cornea. Scientists aren't sure how they process what they see.

每组包括一对拥有复杂晶状体、视网膜、虹膜和角膜的眼睛。科学家们还不确定它们如何处理它们看到的东西。

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The lesions were found in the conjunctiva, episclera, cornea, iris, lens, vitreous, and retina.

病变见于结膜，上巩膜，角膜，虹膜，晶状体，玻璃体和视网膜。

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For the purposes of our discussion, the key parts of the eye are the lens, the iris and the retina (where we find the rods and cones).

为了便于讨论，我们来谈谈眼睛的主要部位：晶状体，虹膜和视网膜(在那里我们可以找到视杆细胞和视锥细胞)。

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UV-blocking contact lenses protect the inner structures of the eye including the cornea, the iris, the lens and the retina.

WSJ: Contacts Lenses That Let In Sun, But Block UV Rays