Confronting him would accomplish little or nothing since he is not likely to acknowledge what he has done, how he has hurt you and that he needs to take a close look at himself, see his errors and ask for your forgiveness while doing whatever he might be able to do in relation to helping to make it possible for you to heal. Having a sick father can sometimes be worse that having no father at all, and I would suggest you look for a counselor or therapist who can help you separate what happened to you from your actual value as a human being and then learn to move along. To stop seeing your dad completely might be a good idea, and you might prepare a letter to later give him explaining why if he might ever ask. But whatever you do, I would suggest not trying to actually discuss any of this with him unless that is being done under the immediate direction (presence) of a good counselor or therapist.