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To the Editor:
—In "A Tribute to Herman Knapp," you state editorially in The Journal, May 20, 1911, in substance that Dr. Knapp first introduced the ophthalmoscope into this country in 1868. This is erroneous. Whatever credit is attached to the first introduction of that instrument into this country belongs to the late Dr. E. Williams of Cincinnati.In 1852, Dr. Williams determined to devote his life to the specialty of ophthalmology and went to Europe to perfect his education along that line. Just at that time the ophthalmoscope first came into use and Dr. Williams had the rare good luck to be able to study its uses along with Des Marres, Graefe, Arlt, Jaeger and others in Germany.Early in the year 1854, he introduced the ophthalmoscope into London. At that time this instrument was unknown in England, so far as its uses were concerned. While in London, Dr.
Williams AD. The Introduction of the Ophthalmoscope Into This Country. JAMA. 1911;LVII(5):408. doi:10.1001/jama.1911.04260070412027
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