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P. J. LEINFELDER, M.D.; E. F. RILEY, Ph.D.

AMA Arch Ophthalmol. 1956;55(1):84-86.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Previous experiments by one of us (P. J. L.) in 1953¹ have demonstrated that the irradiation of one quadrant of the lens with x-rays results in opacity limited to the area of exposure. In our original work low doses were used and incomplete cataract resulted. More recently, in an attempt to produce rapidly an overwhelming effect in one sector of the lens, considerably larger doses of radiation were utilized.

EXPERIMENTAL STUDY

Albino rabbits of approximately 2 kg. were used in the experiments. X-ray exposure factors were 200 kv., 5 ma., 27 cm. distance, 150 r per minute, and 1 mm. Al filtration. Single exposures measured in air with a Victoreen r-meter were employed. Exposure of the lens was limited by lead shield (Fig. 1), sutured to the sclera of the anesthetized rabbit. Further shielding was obtained by covering the remainder of the animal with sheet lead. One quadrant of . . . [Full Text PDF of this Article]

Author Affiliations
Iowa City

Department of Ophthalmology, State University of Iowa College of Medicine (Dr. Leinfelder). Radiation Research Laboratory, State University of Iowa College of Medicine (Dr. Riley).

Footnotes
Received for publication Oct. 17, 1955.

This paper is based on work done under Contract AT (11-1)72 Project I, for the U. S. Atomic Energy Commission.

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