EXPERIMENTAL RADIATION CATARACT II. Cataract in the Rabbit Following Single Exposure to Fast Neutrons
David G. Cogan, John L. Goff, Elizabeth Graves · 1952
1952 study found single exposures to 14-mev and fission neutrons produced cataracts in rabbits, with lens lesions similar to those following x-irradiation.
Plain English Summary
This 1952 study by Dr. David Cogan investigated radiation-induced cataracts in rabbits using single exposures to neutrons from the Cockcroft-Walton Accelerator (14-mev neutrons) and the Fast Reactor (fission neutrons). The research examined how high-energy radiation damages the lens of the eye, contributing to early understanding of radiation's effects on vision. This foundational work helped establish that neutron irradiation produces ocular lesions essentially similar to those following x-irradiation.
Why This Matters
This pioneering research from 1952 represents some of the earliest scientific documentation of radiation's ability to damage human tissue - specifically the delicate structures of the eye. While this study used neutron radiation from an accelerator and a fast reactor (much more intense than everyday EMF sources), it found that single neutron exposures produce cataracts, epilation, and keratoconjunctivitis in rabbits. The eye's lens is particularly vulnerable because it has no blood supply to repair radiation damage, making it an early indicator of radiation exposure effects. What this means for you is that while your daily EMF exposures from phones and WiFi are vastly lower in intensity, the eye remains one of the most radiation-sensitive organs in your body. The science demonstrates that neutron radiation and the lens of the eye interact in measurable, often harmful ways.
Figures from the Original Paper
Diagrams extracted from the original research document.
Study Details
To study the cataractogenic properties of neutrons and compare them with those of x-rays and other forms of radiation, particularly focusing on acute exposures to 14 mev and fission energy neutrons.
French silver rabbits were used in all the experiments. The rabbits were exposed to neutrons from tw...
Except for the rabbit receiving the maximal radiation to the eye (1 X 10" neutrons/cm."), none of th...
The course of events following neutron irradiation is basically similar to that following x-ray exposures. Effectivity as regards cataract production obtained with 8 X 10° neutrons/cm.? (14 mev) or with 3 x 10" neutrons/cm.? (fission energy) is comparable to that obtained with 500 r (1.2 mev). The threshold dose for production of lens opacities by neutrons is less than 2 X 10° neutrons/cm.? incident on the lens. The cataractogenic properties of neutrons, in comparison with those of x-rays, increase considerably with chronic exposure.
Show BibTeX
@article{experimental_radiation_cataract_ii_cataract_in_the_rabbit_following_single_expos_g5874,
author = {David G. Cogan and John L. Goff and Elizabeth Graves},
title = {EXPERIMENTAL RADIATION CATARACT II. Cataract in the Rabbit Following Single Exposure to Fast Neutrons},
year = {1952},
}