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"Dark-field microscopy is a valid scientific tool in which special lighting is used to examine specimens of cells and tissues. The objects being viewed stand out against a dark background-the opposite of what occurs during regular microscopy. This allows the observer to see things that might not be visible with standard lighting. Connecting a television monitor to a microscope for diagnostic purposes is also a legitimate practice. However, live cell analysis is not. Although a few characteristics of blood (such as the relative size of the red cells) are observable, live cell analysts invariably misinterpret other things, such as the extent of red blood cell clumping, changes in the shape of the cells, and other artifacts that occur as the blood sample dries. Moreover, most practitioners who perform the test are not qualified to manage the problems they purport to diagnose." Article by Stephen Barrett, MD (Chirobase)