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February 1960

Corneal Rust Ring: Etiology and Histology

Author Affiliations

New Haven, Conn.; New York
From the Section of Ophthalmology, Yale University School of Medicine.

AMA Arch Ophthalmol. 1960;63(2):254-265. doi:10.1001/archopht.1960.00950020256008

Introduction  One of the problems commonly confronting the ophthalmologist as well as the general practitioner is that of the corneal foreign body. With the utilization of high speed drills and other mechanical devices in our modern era of industrialization, the frequency of eye injuries secondary to embedded particles remains high despite the increasing use of safety precautions.1 Fragments buried in the corneal substance represent by far the commonest industrial ocular accidents, serious enough to reach a statistical reporting center. In a study by Callahan2,3 of 404 eye injuries occurring in an aircraft plant, keratic foreign bodies accounted for 37% of the total number. Gronvoll and Ohlson4 demonstrated that the vast majority of these particles are centrally located in an area which represents approximately only one quarter of the total keratic surface. The importance of the prevention of permanent corneal damage becomes that much more significant because of

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