My family and I became patients of Dr Tuffs approx 20 years ago. My oldest son had reading problems. But every other eye dr I took him to told me his eye were fine. Dr. Tuff realized that the muscles at my sons tear duct were weak. Causing his eyes to jump to the side when he would try to focus on a word to read. With strengthening exercises my sons eyes got better. He is in his 30's now and enjoys reading to his children. Dr. Tuff changed are lives. Thank you Dr Tuff.