By focusing a circle of light on the cornea and measuring its reflection, it is possible to determine the exact curvature of the cornea's surface.

通过将一束圆形光圈聚焦在角膜上，测量反射过来的光线，就能得出角膜表面曲率的确切数据。

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Using the Ellipse Tool (U), again create a small circle but this time in front of the LOGO. This circle will be a reflection on the logo.

用椭圆工具，建立一个小的圆形放在LOGO前面，用此来制作光线效果。同样利用模糊。

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