Browsing around as I do I came across this brilliant selection of eyes from famous paintings but it threw me rather as there were 6 pictures and five artist named . . . . . . .my bad!? 
The blog owner set me right tout suite!

Art is Essential!

The Eyes have it!

© art is to console those who are broken by life

Of course the answer is Leonardo da Vinci (twice), Vincent Van Gogh, Pablo Picasso, Jan Vermeer and Egon Schiele