Sylvia - lotza hugs back to you. You do have a lot on your plate, don't you. I have a minister friend who has macular degeneration and has had it for 5 years and he still drives. He has to have special glasses (Don't know what they are called, but maybe someone else can provde the name.) Did they put a pig's valve in your son?My husband had his mital valve replaced with a pig's valve and did beautifully. He passed away however, from another problem. He was only 47. Best wishes to you and hopefully things will begin to settle down. Jo Ann from Houston