Look at vs. Look to

Look at implies to turn the eyes in a certain direction so as to see; to use one's sight.

• He turned and looked at her.
• I’d like a skin specialist to look at that rash of yours.

Look to (someone or something) implies To rely on, turn to or refer to them or it, to expect

• Children look to their parents for help.
• This looks to be a very difficult assignment.