You have to export the events everytime you want to look at them.
Route One: Use
logparser to create some .txt
% wevtutil epl XYZ %TEMP%\log.evtx
Then you install LogParser and use it like this:
% logparser -i:evt -o:csv "SELECT * INTO %TEMP%\log.csv FROM %TEMP%\log.evtx"
After which you can
% gvim %TEMP%\log.csv
Note: Replace 'XYZ' in the first line with whatever part of the event log you are interested at, these snippets should get you started.
Check out http://martin77s.wordpress.com/tag/logparser/ as well.
Route Two: Use psloglist from Sysinternals and use it like this:
:%!psloglist -h 1 -o XYZ
where XYZ is the event source (maybe the name of your app). Looks simpler to me.