EXPERIMENTAL RADIATION CATARACT II. Cataract in the Rabbit Following Single Exposure to Fast Neutrons
David G. Cogan, John L. Goff, Elizabeth Graves · 1952
1952 cyclotron study proved neutron radiation causes permanent eye cataracts in rabbits, establishing electromagnetic radiation's tissue damage potential.
Plain English Summary
This 1952 study by Dr. David Cogan investigated radiation-induced cataracts in rabbits using neutron exposure from a cyclotron. 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 certain types of electromagnetic radiation can cause permanent eye damage.
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 a cyclotron (much more intense than everyday EMF sources), it established a crucial principle: electromagnetic radiation can cause permanent biological damage to sensitive tissues. 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 electromagnetic radiation and biological tissue interact in measurable, often harmful ways - a reality the wireless industry continues to downplay despite decades of accumulating evidence.
Figures from the Original Paper
Diagrams extracted from the original research document.
Exposure Information
Specific exposure levels were not quantified in this study.
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},
}