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To the Editor:
—I accept in an appropriate spirit Dr. Parker's generous congratulations (Arch. Ophth.25: 156 [Jan.] 1941) on the excellence of my serrated discission knife. It is true that my knife is different from his in that, judging from his own statements, it is far more efficient, but it is identical with his in principle in that it is a serrated Ziegler knife. I share his amazement that my knife should have "stood up" for twenty years in spite of frequent use, but I largely attribute its longevity to its freedom from abuse and to the fact that it has been sterilized only in alcohol. I cannot understand why he should wonder "what and where these serrations are," for they are plainly shown in the illustration.The purpose of my letter was simply to point out that a serrated discission knife of remarkable efficiency and durability had once
Verhoeff FH. SERRATED DISCISSION KNIVES. Arch Ophthalmol. 1941;25(3):511. doi:10.1001/archopht.1941.00870090135017
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