I had a patient whom I hadn't seen for over 10 years. Upon his eye examination, he commented to me that because we observed possible changes in the retina due to hypertension, I had referred him to his primary care physician. Indeed there was hypertension. His physician also ordered for him at that time a psa and subsequently found out the patient had prostate cancer. His doctor stated that if he would have gone six months longer, he may not have survived.