How is this blue cast on the eyes achieved?

[brassplyer]

In this scene the eyes of this character take on a blue cast - not just her eye makeup but the eyeballs have a blue cast. Is this likely a deliberate effect or some kind of optical bleed over or just a result of the particular lighting used?

Same actress in the third screen shot different scene, no blue cast.



[Attachment 67821 - Click to enlarge]



[Attachment 67822 - Click to enlarge]



[Attachment 67823 - Click to enlarge]

[Selur]

Third scene uses totally different color grading,...
I would vote that this is a color grading side effect, no clue whether this was wanted or not.
(seems to me that the first scene simply uses higher blue values,.. https://cinematography.com/index.php?/forums/topic/91109-whites-of-the-eye-go-blue-aft...or-correction/ might be interesting)