An operation microscope (10) and lamp (40) has a light source and objective (11) creating a magnified image of the illuminating pupil and base of the object (30) through apertures (44, 45) in the first focus and simple (46, 47) and cemented(48) lens elements to create an afocal beam giving homogeneous illumination. Independent claims are included for the use of the operations microscope for cataract removal.
