In the comic books, the Batman Family has white eyes in their respective masks, a visual which has been missing from the big screen since Tim Burton's 1989 movie. Christopher Nolan found a way to incorporate that in The Dark Knight and it looked pretty cool but not even Zack Snyder decided to go down that route (aside from the armoured suit the Caped Crusader wore in Batman v Superman).
So, will Nightwing wear them in his upcoming solo outing? Well, director Chris McKay didn't outright confirm that will be the case during a recent fan interaction on Twitter but he's clearly a fan!
The use of white lenses very much seems to boil down to the preferences of comic book artists but they are a staple of these characters and so it will be interesting seeing if McKay can find a non-awkward way to bring them to a live-action setting. Of course, the filmmaker recently confirmed that Nightwing is still in the early stages of development so we probably shouldn't get too excited just yet.
Why not? Well, we probably have at least a year or two to wait until getting a first look at the hero!