Recent work by von Sallmann and Meyer1 has indicated that penicillin is of little value in the treatment of intraocular infections if given intramuscularly or instilled as drops. Their results suggested that iontophoresis and the use of a corneal bath plus a wetting agent are the only satisfactory means of introducing a sufficient concentration of penicillin into the anterior chamber. According to their report, iontophoresis is more effective, but with the corneal bath an adequate concentration can be obtained. The latter method is, moreover, much easier to carry out, especially for ophthalmologists in service.
A simple corneal bath of plastic (acrylic acid derivative) has been devised, with the technical help of Major J. M. McDougall, Canadian Dental Corps, and his assistant, Sgt. H. Travers. It is modeled from an average-sized contact lens. The corneal curvature is made greater than that of an ordinary contact lens. A plastic tube is
Duncan HAG. PLASTIC CORNEAL BATH FOR APPLICATION OF PENICILLIN. Arch Ophthalmol. 1945;33(4):313–314. doi:10.1001/archopht.1945.00890160067006
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