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Updated: May 29, 2025
The laryngoscope was invented in 1854 by a teacher of singing, Manuel Garcia, who soon after gave an account of it to the Royal Society of England. The instrument consists essentially of two mirrors, the external, or "head-mirror," which is concave and reflects into the larynx, and the internal, or "mouth-mirror," which reflects the picture outward to the eye.
Moreover, this objection does not apply equally to electric light, now so much used. This illustration is meant to show more especially the relative position of observer and observed. The observer, on the right, is wearing the head-mirror, while two throat-mirrors seem to be in position in reality, the same mirror in two different positions.
The purpose of the head-mirror is to reflect the light that reaches it from a lamp or other source of illumination into the mouth cavity so perfectly that not only the back of the mouth, etc., but the larynx itself may be well lighted up; but inasmuch as this illumination may be accomplished, under favorable circumstances, by direct sunlight, the head-mirror is, though mostly indispensable, not an absolutely essential part of the laryngoscope.
Intended to illustrate the optical principles involved and the practical method of carrying out laryngoscopic examination. As usually employed, the laryngoscope consists of two mirrors, the head-mirror, so called because it is usually attached to the forehead by an elastic band, and the throat-mirror, which is placed in the back part of the mouth cavity.
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