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Article
August 1972

Practical Characteristics of Metal Locators

Author Affiliations

Southampton, NY
From the Ophthalmological Electronics Laboratory, Southampton Hospital, Southampton, NY.

Arch Ophthalmol. 1972;88(2):199-203. doi:10.1001/archopht.1972.01000030201013
Abstract

A new metal locator is described that is physically, rather than electrically, balanced. This eliminates some of the difficulties of using earlier equipment, which needs constant retuning. Because the new locator responds only to magnetic materials, it discriminates among foreign bodies, indicating those that can be extracted with a magnet. Of course, a metal locator should be used in conjunction with such other tools for management of an intraocular foreign body as roentgenograms and ultrasound.

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