I was looking in to the question of whether any dogs in fact have "blue eyes"...
A quick search gives plenty of information on and images of dogs with blue sclera and black iris.
Every "blue-eyed" canine I know of personally or could google up has black iris and blueish sclera.
It is unclear if any dogs have blue iris.
(BTW there are many popular articles on the "four typical reasons" that canines can have blue sclera).
Humans with "blue eyes" of course have blue iris / white sclera. But the only dogs I have found with "blue eyes" in fact merely have blue sclera and black iris.
I did find a couple of poorly-written lite info sites that mention blue iris, but appears to be basically a typo, the articles appeared to mean to refer to blue sclera -- I cannot find any actual scholarly articles on the issue --
(I"m sure, everyone on this site knows that regarding humans with "blue" iris, it's not "really" blue, but a Tyndall effect. Popular article on that.)
And don't mention cats - it's commonplace that cats have "blue eyes" but every image I've seen is of a feline with blue sclera, and black iris. One could ask, do any felines have blue iris?
In short my question is ... do any canines have blue iris??