Correct

开眼

/ kāiyǎn / 
Strokes

Definition

to open one's eyes/to widen one's horizons

Example

As a Verb

broaden/expand sb's horizons; open sb's eyes; widen sb's view; broaden sb's mind

1
Zhè
这
cháng
场
yǎnchū
演出
zhēn
真
jiào
叫
rén
人
kāiyǎn
开眼
  
。

The performance is a real eye-opener.