Whether we think she is smiling or not depends upon which cells in the eye catch the image first and how information from the image moves through the brain.

我们是否认为她在微笑取决于我们眼睛的哪些细胞首先捕捉到了形象，以及来自于图像的信息如何在大脑中运行。

youdao

She uses many methods to catch his eye, or get him to notice her.

VOA: special.2009.09.06

But something else catch your eye?

但还有别的东西吸引您的眼球？

哈佛公开课 - 计算机科学课程节选

There's Phillies pitcher Brett Myers, who in 2009 said he injured his eye playing catch with his son but later confessed that he hurt it exiting his wife's SUV after a few beers.

WSJ: Yankee Reliever David Robertson Injured in Fall

This means that only the biggest firms catch the eye of big institutional investors.

ECONOMIST: Mining

At the door, a handsome, clean-shaven man with gelled-back hair is trying to catch my eye.

BBC: News, Calais