Marc Amsler honor in ophthalmology. Amsler was professor and chief of the Zurich Eye Clinic until 1961. His successor was Rudolf Witmer. He is best known for the Amsler grid test. The Amsler grid was an improvement over the initial work done by the ophthalmologist Edmond Landolt. The grid tests the function of the macula, a part of the retina, so that macular degeneration can be identified. He also contributed to the progress in the understanding of uveitis. Furthermore, he published works on keratoconus. In 1951, Dr. Amsler performed the first corneal transplantation at the Zurich Eye clinic. Marc Amsler Marc Amsler
Body part as an object tool-use knowledge is physical, meaning that it involves the actual manipulation of an object. The other type of knowledge is conceptual: using the physical (or active) knowledge of tool-use to add to the mental representation of the tool. Action schemas explain how we develop motor skills and performance of many complex motor-activities. Essentially, the more an object is manipulated and used, a greater schema is developed in the brain. Therefore, increased object use gives us a greater understanding of the object, which then facilitates our understanding of the object independent of its context. The strength of an action schema is