Live Site Link
The eye icon is a link that takes you to your live site. Clicking this button will open a new tab in your web browser, you should then see your live site. The most common use of the eye button is immediately after you have published your site.
Please note: Quite often you may find it appears that your latest changes have not published. If you are certain you have pressed the Publish button, follow the instructions below:
TO FORCE REFRESH YOUR WEB PAGE
For Internet Explorer: Hold the CTRL key and press F5