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Time and Power Thresholds for Production of Lens Opacities by 12.3 Cm. Microwaves

D. B. WILLIAMS, B.S.; J. P. MONAHAN, M.D.; W. J. NICHOLSON, B.S.; J. J. ALDRICH, M.S.

AMA Arch Ophthalmol. 1955;54(6):863-874.

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

Although cataract production has not been established as a microwave effect in humans,* the formation of lens opacities in animals subjected to 12.3 cm. radiation suggests the need for precautions in the administration of ocular diathermy or in situations where exposure of the eye is required for the operation of microwave generators. Unfortunately, the lack of basic information as to the radiation dose and dose rates employed in previous studies has thus far precluded the development of standards which define ocular tolerance to microwaves. As an initial effort in this direction, the present investigation is designed to establish the time and power requirements for experimental opacity production by single doses of 12.3 cm. radiation. Both the wave length and the power levels employed for this purpose are of interest in the applied fields of microwave diathermy, radar communications, and microwave research.

The chief source of information on lens damage . . . [Full Text PDF of this Article]

Author Affiliations
Randolph Field, Texas; London, England; Kirtland Air Force Base, N. Mex.; Randolph Field, Texas

Department of Radiobiology, U. S. A. F. School of Aviation Medicine (Mr. Williams and Mr. Aldrich). St. John's Hospital, Lisle St., Leicester Sq., W. C. 2, (Dr. Monahan). Biophysics Division, AF Special Weapons Center (Mr. Nicholson). This work was accomplished at the Radiobiology Laboratory, Atomic Warfare Directorate, Air Force Cambridge Research Center, Air Research and Development Command, Cambridge, Mass.

Footnotes
Received for publication July 25, 1955.

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