Pre-lens apparatus and ophthalmic microscope

摘要

The present invention makes it possible to use a plurality of front lenses of different focal lengths without touching hands such as a surgeon and an assistant working near an eye to be examined, and an ophthalmic microscope It is an object of the present invention to develop a pre-lens device that does not fall within the observation field of view of The present invention relates to a front lens holder for holding a liquid lens (6) in a front lens apparatus (1) used in an ophthalmic microscope (2) having an observation optical system for observing an eye to be examined (11). (4) and a focal length control mechanism for changing the focal length of the liquid lens (6) by deforming the shape of the liquid lens (6); )I will provide a. [Selected figure] Figure 1