Yikes! Eye Tools of Ages Past

German orthopedist Bernard Heine invented the osteotome, a chain saw-like tool which was used to cut through bone and other hard tissues without the impact that a hammer or chisel might have. Because it was gentler, it did not splinter bone and would enable a surgeon to work faster and use less force.

From the Abraham Pollen Archives, Massachusetts Eye and Ear Infirmary.