Brain Cancer healing by the patient: I had a knee surgery in 1981 and since then I was in pain. About 2 years ago, I was diagnosed with brain cancer and went through a surgery to remove a brain tumor and during that brain surgery my optic nerve was damaged and I lost vision in my left eye. After 4 healing sessions from Peer Usman, my knee pain is gone. Also my vision has improved and miraculously some of my left eye vision has also come back. I had given up my driving and now after more than a year I have started driving again (from Toronto, Canada).