Being a modern-day Chiropractor in Grand Rapids MI, I'm well aware of the astigmatism of Chiropractic treatment. Having said that, we are literally a health care provider in Science with reports displaying the measurements in levels on the normal curve in the backbone. Guess you failed to understand that! http://chiropractic74939.blogpostie.com/10187761/the-ideal-chiropractor-in-grand-rapids