How did Lister improve the microscope?

Joseph Lister improved the microscope by introducing the use of better lenses, which enhanced the clarity and magnification of specimens. He focused on refining the optical quality and precision of the microscope, allowing for more detailed observations of microorganisms and tissues. Lister's advancements contributed significantly to the development of microbiology and surgical practices by enabling scientists and doctors to visualize bacteria and other pathogens more effectively.