A Simple Method of Laryngeal Photography through the Operating Microscope “Macrolens Technique”

Abstract

A simple and inexpensive method of laryngeal photography through the eyepiece of the operating microscope is described. Provided that the operating room is equipped with the microscope, the laryngoscope and the laryngoscope holder, the only essential equipment required is an “aperture-preferred” automatic single lens reflex camera with a 50 mm macrolens. The macrolens of the camera is placed against an eyepiece of the microscope and the laryngeal image is centered and focused via the viewfinder of the camera. The respiration of the patient is temporarily halted. The camera is held still and pictures taken. Kodak high speed Ektachrome® tungsten film ASA 160 is used and push-processed to ASA 320. With practice, one should be able to obtain satisfactory photograph of the larynx suitable for teaching and documentation.