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CHARLES J. IMPERATORI, M.D.
NEW YORK

Arch Otolaryngol. 1945;41(4):304.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

The examination of the larynx, particularly the surface structure of the mucosa, the contour of the vocal cords and the arytenoids and their movements, is materially helped by magnification and by stereoscopic vision. This may be accomplished by the use of a binocular loupe, which is an optical device designed to give a magnified image plus the discrimination made possible by the depth perception in stereoscopic vision.

This device consists of a twin loupe with lenses that are spheroprisms of 3.50 diopters, having a working distance of 13 inches (33 cm.). The magnification is about one and three-quarter times. The framework is made of plastic material and is comparatively light. Screwed to the framework is a ball that articulates with a socket extension, which in turn articulates with a reflecting mirror having a focal distance of about 8 inches (20 cm.). This mirror has an opening of sufficient size, approximately . . . [Full Text PDF of this Article]

Footnotes
This instrument is not as yet in production. The working model was constructed for the author by Mr. George Swikart, Plastic Sales Corporation, 140 West Seventy-Second Street, New York 23, N. Y.

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