File:A manual of diseases of the throat and nose - including the pharynx, larynx, trachea, oesophagus, nose and naso-pharynx (1880) (14596355897).jpg

Identifier: manualofdiseases00mack (find matches)
Title: A manual of diseases of the throat and nose : including the pharynx, larynx, trachea, oesophagus, nose and naso-pharynx
Year: 1880 (1880s)
Authors: Mackenzie, Morell, Sir, 1837-1892
Subjects: Otolaryngology Nose Pharynx
Publisher: New York : W. Wood & Co.
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: Open Knowledge Commons and Yale University, Cushing/Whitney Medical Library

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rds right and left, but must recollectthat the picture represents an image formed on a mirror held obliquelyabove and rather behind the larynx of another person. 170 DISEASES OF THE PHARYNX, LARYNX, AND TRACHEA. In making a larvngoscopic examination there are three stages. First Stage.—The patient should sit upright, facing the observer, withhis head inclined very slightly backward. The observers eyes should beabout one foot distant from the patients mouth, and a lamp burning witha strong clear light should be placed on a table at the side of the patient,the flame of the lamp being on a level with the patients eves. The ob-server should now put on the spectacle-frame with the reflector attached,and directing the patient to open his mouth widely, should endeavor tothrow a disk of light on to the fauces, so that the centre of the disk corre-sponds with the base of the uvula. If the observer has much trouble inprojecting the light on to the fauces, he will find it convenient to incline
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Pig. 21.—Laryngoscopy—Third Stage, showing position of practitioner and patient. the reflector at a suitable angle before putting on the spectacle-frame.This may be done as follows: Taking the spectacle-frame in the hand,with the mirror attached, so that the central aperture in it would comeopposite to the pupil of the operators right eye, and fixing the joint sothat the back of the mirror is parallel with the spectacle-frame, the outeredge of the reflector should be pushed rather more than a quarter of aninch forward or backward, according as the lamp is on the right or leftside of the patient. If the observer has chosen his position and placedthe lamp as directed, on putting on the spectacle-frame, a beautiful lumi- LARYNGOSCOPY. 171 nous disk will appear at the back of the throat. When direct light isused, the first stage is much simplified, as the patient has only to sit op-posite the lens of the lamp, as described at page 1G5. Second Stage.—The patient should be directed to

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