“Glimpse” and “glance” are not the same thing.  Don’t use one when you mean the other.

If you glimpse something, you get a quick look at it:  Jane glimpsed something moving outside the window.

The noun indicates the product of  a quick look at something:  Jane caught a glimpse of something moving outside the window.

If you glance at something, on the other hand, you look at it briefly:  Joe glanced at the window.

Likewise, the noun form refers to the action of looking:  Joe and Jane exchanged meaningful glances.

(What’s lurking outside that window?  I don’t know.  But Jane and Joe don’t seem terribly surprised to find out that it’s there.)