A small percentage of gorillas do have a human like white sclera. Linked article includes pictures.

> Out of the 60 western lowland gorillas they considered, only 30% had completely dark scleras. The remaining 70% had some degree of white in their eyes. Of these, a small sample of 7% had all white, human-like sclera.

http://www.bbc.com/earth/story/20150808-gorillas-with-human-...