To the Editor.
—Silicone intubation is a well-recognized modality for the treatment of many lacrimal drainage disorders.1 Although a variety of instruments and techniques have been devised for the intubation procedure1,2 even experienced surgeons may encounter difficulties, particularly when attempting to retrieve the probe from within the nose. These difficulties are partly a consequence of the compact anatomy of the inferior meatus.The nasolacrimal duct opens into the inferior meatus from the lateral nasal wall. Below this ostium, the lateral wall slopes medially toward the floor of the nose, and opposite the lateral wall is the bullous inner aspect of the inferior turbinate. The space that separates these two structures (comprising the inferior meatus) is narrow and obliquely angled. Since the nasolacrimal duct is oriented nearly vertically, a standard straight lacrimal probe emerging from the ostium will tend to press against the mucosa of the lateral wall (Fig
Meyer DR, Lindberg JV. Modification of Lacrimal Probe Facilitates Silicone Intubation. Arch Ophthalmol. 1989;107(8):1115–1116. doi:10.1001/archopht.1989.01070020181009
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