无论冬夏，数小时明亮的阳光都可以灼伤眼球表面，使之感到短暂的疼痛。这种病状叫做光致角膜炎。

Winter or summer, hours of bright sunlight can burn the surface of the eye, causing a temporary but painful condition known as photokeratitis.

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在全球范围内，未经矫正的屈光不正是视力损害的主要原因，在中、低收入国家，白内障仍然是致盲的主要原因。

Globally, uncorrected refractive errors are the main cause of visual impairment; cataracts remain the leading cause of blindness in middle - and low-income countries.

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莱斯大学的工程师们计划使用由组员Stephan Link所发现的纳米材料创制能感知光的薄片材料，它与头足类动物皮肤的快速变色原理一致。

The Rice engineers plan to use nanomaterials discovered by team member Stephan Link to create sheets of materials that can see light in the same ways as cephalopods' skin and change color quickly.

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