The laryngoscope : directions for its use, and practical illustrations of its value in the diagnosis and treatment of diseases of the throat and nose : two lectures delivered at the Royal College of Physicians / by George Johnson.
- Date:
- 1864
Licence: Public Domain Mark
Credit: The laryngoscope : directions for its use, and practical illustrations of its value in the diagnosis and treatment of diseases of the throat and nose : two lectures delivered at the Royal College of Physicians / by George Johnson. Source: Wellcome Collection.
Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.
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![reflector with sunliglit, you must be careful not to burn the throat by concentrating the rays into a focus. Solar caustic, be it remembered, may be made even more powerful than luna7' caustic. [Since this lecture was given I have found that the best mode of using sunlight in laryngoscopy is to place a looking- glass in such a position that it shall deflect the sun's rays on the frontal reflector, but leave the eyes of the operator in the shade. In this way we avoid the serious inconvenience which results from exposing the eyes to the direct rays of the sun. Both the j^atient and the operator are in the shade, a column of light being turned upon the frontal reflector by the looking- glass.] With sunhght it is not absolutely necessary to use the frontal reflector. The joatient may face the sun, so that the rays fall directly upon the laryngeal mirror. But here, again, the advantage of the reflector consists in the facility with which it enables you in a moment to change the direction of the light. The reflector on the forehead is a very useful means of lighting the throat for the purpose of examining the tonsils, palate, and pharynx. Placing a lamp or a candle by the side of the patient, or using sunlight when it is available, the operator, with the reflector on his forehead, throws the light into the throat, and has both his hands free to depress the tongue and to apply caustic or other local remedies. In cases of diphtheria and scarlatina, by this method of illumina- tion a thorough examination of the throat can be made in a much shorter time than by the ordinary method, and without the necessity of raising the patient's head from the pillow. The operator in this way runs less risk of infection from inhaling the patient's breath.](https://iiif.wellcomecollection.org/image/b21920321_0032.jp2/full/800%2C/0/default.jpg)
