Hi Doc, I have some grey spots in my eyes, how can I get rid of them naturally to get back that white pearly look?

Color. is genetically based. You only option would be tinted contacts, for cosmetic reasons,
I'm afraid you can't. I think you are talking about the yellowish gray color some people get in the whites of their eyes where the sun shines even when you squint. That makes a little triangle usually on the nose side of the iris (the colored part). They can grow so get sunglasses that block UVA and UVB. They can grow otherwise and even sometimes over the iris, sometimes enough to block vision, but not usually that.