Body: People who study "Microscopical examination of drugs" investigate Microscopy is the technical field of using microscopes to view objects and areas of objects that cannot be seen with the naked eye (objects that are not within the resolution range of the normal eye).
Some motivations are There are three well-known branches of microscopy: optical, electron, and scanning probe microscopy, along with the emerging field of X-ray microscopy.
Robert D. Huerta, Giants of Delft: Johannes Vermeer are a few specialists of "Microscopical examination of drugs".
Some subfields in "Microscopical examination of drugs" include Bright field, Oblique illumination, Dark field.