Eye diagnosis, as one of the clinical features of ophthalmology, is also an important part of TCM inspection. In clinical practice, it is often because of the lack of guidance of the holism, the irregular collection of information, and the various methods and results of syndrome differentiation that make the eye diagnosis to a certain extent impossible. Play its important role. Therefore, this article starts from the origin and development of the eye diagnosis, and proposes the relationship between the holism and the eye diagnosis. At the same time, it explains from the three aspects of the im...