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To the Editor.
—The recent article by Charles K. Beyer, MD, on his "modified lacrimal probe" in the Archives (92:157, 1974) was very interesting.I believe that the French-eye pigtail probe to which Dr. Beyer refers is the one reported by me in the American Journal of Ophthalmology (72: 1145-1146, 1971). Dr. Beyer is certainly free to prefer Silastic tubing, but I still prefer to use a doubled length of 4-0 silk for the stent.I was rather surprised, however, to learn that he had "enlarged the diameter of the curved element of the probe to 9 mm instead of the standard 5 mm." I am still using clinically the original prototype instrument made for me by Storz Instrument Company, which has now become their catalog number E-4253. My prototype instrument, and the original Worst "crochet hook" instrument, which I used previously, both have diameters of 8 to 9 mm.
Kartch MC. Modified Lacrimal Probe. Arch Ophthalmol. 1975;93(2):163. doi:10.1001/archopht.1975.01010020169015