Diaphanoscopy


Also found in: Medical.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Diaphanoscopy

 

transillumination of the paranasal sinuses and eyeballs in order to determine their condition.

Diaphanoscopy is carried out in a darkened room using a special electric light attached to a handle. To examine the maxillary (Highmore) sinuses, the light is inserted into the subject’s mouth; to determine the state of the frontal sinus, the light is set against the upper inside corner of the eye sockets. Where there are pathological changes (inflammation, tumor) the affected site will appear darkened. A special light mounted in a special metallic capsule is used in transillumination of the eye.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.