Thanks for the explanation. I have had a few computer issues lately and it has gone through several updates including a long drawn out affair with Norton. All seems to be working well now, but when I saw that "eye" I began to be worried that someone was watching what I was typing. (I tried the left click and it displays the characters.)
I've also noticed that when typing on this forum (and others) spell check is now active - not in an auto correct manner but by underlining. In the past this only appeared for me if I was using Firefox.
Good to know I'm not facing another issue to fix.