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December 1988

The New Crawford Hook: Is It Safe?

Arch Ophthalmol. 1988;106(12):1648-1649. doi:10.1001/archopht.1988.01060140820006

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To the Editor.  —Crawford1 has described a set of probes and a hook for placement of silicone tubing in the lacrimal drainage system.2 I have found this original intubation set to be especially useful in children and have used it without incident in approximately 25 pediatric cases since 1980. Recently, I have treated two cases in which a new version of the Crawford hook broke during attempted delivery of the probe from the nose.

Report of Cases.—Case 1.  —A 17-month-old boy had a congenital nasolacrimal duct obstruction. A previous probing at 15 months of age had failed to clear the obstruction. Firm scar tissue was encountered in the distal nasolacrimal duct during intubation. The inferior turbinate was fractured medially to allow better access by the Crawford probe. The Crawford hook that was used had been purchased in August 1986, and was new. It broke promptly after the

Crawford JS:  Intubation of obstructions in the lacrimal system . Can J Ophthalmol 1977;12:289-292.
Kraft SP, Crawford JS:  Silicone tube intubation in disorders of the lacrimal system in children . Am J Ophthalmol 1982;94:290-299.
Tse DT, Anderson RL:  A new modification of the standard lacrimal groove director for nasolacrimal intubation . Arch Ophthalmol 1983;101:1938-1939.Article