The eyepiece.
You look through a microscope through a part called the eyepiece.
The eyepeice
The part of the microscope that you look into is called the eyepiece.
it is the part that you look through to see the magnafied objective
He first looked through a microscope in 1665
Objects viewed through a light microscope look a lot bigger.
Through the uppermost lens.
where we look through
ya MUM
eyepiece
they look through a microscope
ocular lens