I apologize for not understanding, but AREDS2 is this, right?

Also, I am confused by the ingredients in the above link. What is the actual vitamin name? Note that I take multi-vitamins + lutein product before. And in that "lutein product", it claims to have: 20 mg Lutein, 4 mg Zeaxanthin which is way higher dose than the AREDS2 in the link that provided.

So if the AREDS2 product has lower lutein+zeaxanthin and it does not contain a special ingredient then am I downgrading my intake? My doctor knows that I am taking lutein and so I think I am just misunderstanding something.