Amsler grid Amsler grid The Amsler grid, used since 1945, is a grid of horizontal and vertical lines used to monitor a person's central visual field. The grid was developed by Marc Amsler, a Swiss ophthalmologist. It is a diagnostic tool that aids in the detection of visual disturbances caused by changes in the retina, particularly the macula (e.g. macular degeneration, Epiretinal membrane), as well as the optic nerve and the visual pathway to the brain. In the test, the person looks with each eye separately at the small dot in the center of the grid. Patients with macular disease may see
The body in traditional Chinese medicine The body in traditional Chinese medicine The model of the body in traditional Chinese medicine (TCM) has the following elements: Every diagnosis is a "Pattern of disharmony" that affects one or more organs, such as "Spleen Qi Deficiency" or "Liver Fire Blazing" or "Invasion of the Stomach by Cold", and every treatment is centered on correcting the disharmony. The traditional Chinese model is concerned with function. Thus, the TCM Spleen is not a specific piece of flesh, but an aspect of function related to transformation and transportation within the body, and of the mental functions of thinking and studying. Indeed,