I can't tell from the picture. Did the doctor notice and say something to you or did you ask the doctor about it first? My Sam's whites have a bluish tint to them. She is 6 mo. I was never concerned about it but it's barely bluish. When I googled I found what Karen found and this explanation:

In children, the sclera is thinner and more translucent, allowing the underlying tissue to show through and giving it a bluish cast. As we age, the sclera tends to become more yellow.

I hope it's nothing also.