page_title: Speculum (medical)
section_title: Nasal use
hierarchical_section_title: Speculum (medical) / Types / Nasal use
caption_attribution_description: Examples of nasal speculum, both ancient and modern. Wellcome Images Keywords: instruments and apparatus; Surgical Instruments
context_page_description: A speculum, is a 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. 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.
context_section_description: Nasal specula have two relatively flat blades with handle.  The instrument is hinged so that when the handles are squeezed together the blades spread laterally, allowing examination.
  Killian
  Cottle
  Vienna
  Voltolini
  Yankauer
  Additionally, the Thudichum nasal speculum is commonly used in the outpatient examination of the nose.
caption: Two examples of nasal specula: ancient and modern
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