the eyes look like they have been boosted in colour and clarity post production- to make them stand out more- common photographic technique- if they haven’t been, then those are some very unusually colourful eyes
https://www.google.com/search?q=Waardenburg+syndrome&client=firefox-b-1-d&source=lnms&tbm=isch&sa=X&ved=2ahUKEwje1fCD8oftAhVII6wKHRuWBrYQ_AUoAXoECBYQAw&biw=1263&bih=844