Microscope drape and method of attaching the same

A microscope drape, comprising:

• a lens cap that is configured to be attached to and detached from a housing of an objective lens of a surgical microscope;
• a protective lens that is configured to protect the objective lens;
• and
• a drape main body that is configured to cover the surgical microscope, wherein
• the lens cap is a cylinder having a portion along a circumferential direction thereof being opened, has an arc-shaped cross section perpendicular to an optical axis of the objective lens, and can be elastically expanded,
• the microscope drape includes:
• a protective lens holder that is a cylinder whose outside diameter is larger in size than an inside diameter of the lens cap, before the lens cap is expanded, and holds the protective lens;
• and
• a joint that pivotably supports the protective lens holder with respect to the lens cap around a pivot axis perpendicular to the optical axis, and
• the protective lens holder pivots between:
• an attachment/detachment position in which the protective lens holder enters an inside of the lens cap so as to elastically expand the inside diameter of the lens cap;
• and
• a use position in which the protective lens holder is pulled out from an inside of the lens cap to an opposite side of the objective lens so as to reduce the inside diameter of the lens cap, such that the protective lens is tilted with respect to the optical axis.