Speculum (medicine)

A speculum (Latin for 'mirror'; pl.: specula or speculums) is a historical medical tool for investigating body orifices, with a form dependent on the orifice for which it is designed. In old texts, the speculum may also be referred to as a diopter or dioptra.^[1] Like an endoscope, a speculum allows a view inside the body; endoscopes, however, tend to have optics while a speculum is intended for direct vision.