Abstract
A barrier between the nose and mouth of the patient and those of the oculist is of obvious mutual benefit for esthetic and hygienic reasons. The screen shown consists of a disk of black bakelite, 8.25 cm. in diameter, which is attachable by means of a spring clip to the vertical carrier post on the back of any standard opthalmoscope head. The disk pivots on a spring washer and remains adjusted in whatever position may be required for the examination of either the right or the left eye. To prevent scratching the surface of the ophthalmoscope, the prongs of the clip are covered with rubber. This screen should be particularly useful to the oculist who can employ only one eye for his ophthalmoscopic examination and who must therefore come into undesirable proximity to the patient. The apparatus is readily detachable, light and inexpensive, is conveniently carried in the pocket and
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