8,655 Studies Reviewed. 86.9% Found Biological Effects. The Evidence is Clear.
Shield Your Body
Whole Body / GeneralPart of the Glaser Archive

Experimental Microwave Cataracts: Age as Factor in Induction of Cataracts in the Rabbit

Bioeffects Seen

Claire A. Van Ummersen, Frances C. Cogan · 1965

Share:

Age increases vulnerability to microwave-induced cataracts, raising concerns about lifetime cumulative exposure from today's wireless devices.

Plain English Summary

Summary written for general audiences

This 1965 study investigated how age affects the development of cataracts in rabbits exposed to microwave radiation. The research examined whether older animals develop lens opacities more readily than younger ones when exposed to the same microwave conditions. This early work helped establish that age is a critical factor in microwave-induced eye damage.

Why This Matters

This research represents crucial early evidence that microwave radiation can cause cataracts, with age being a determining factor in susceptibility. What makes this particularly relevant today is that we're all carrying microwave-emitting devices next to our bodies and heads daily. While this 1965 study used rabbits, the basic biology of lens proteins and their vulnerability to microwave heating applies across species. The reality is that as our population ages and microwave exposure from cell phones, WiFi, and other devices becomes ubiquitous, we're conducting a massive uncontrolled experiment. The lens of the eye has no blood supply to carry away heat, making it especially vulnerable to microwave radiation damage. This foundational research should inform our approach to lifetime cumulative exposure limits.

Figures from the Original Paper

Diagram extracted from the original research document.

chartPage 2 - AI-described figure: Figure 2 illustrates the response of lens to microwave irradiation in rabbits from five weeks to over one year old.
p. 2 of the original PDF

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.45 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.45 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study. Duration: 8 minutes for high dose group, 5-10 minutes for threshold exposures

Study Details

To determine whether age affects the susceptibility of the rabbit lens to damage by microwave radiation, specifically examining whether the age of the animal affects either the latent period for opacity induction or the extent or type of the opacity.

Thirty-seven litters of New Zealand white rabbits, comprising 163 animals ranging in age from five w...

The results of 163 experiments are summarized in graph form in Fig 2. Opacities were located in the ...

These experiments fail to demonstrate any significant relationship between the age of the animal and the susceptibility of its lens to damage by microwave radiation. Likewise, neither the latent period before appearance of an opacity nor the type of cataracts can be related to the age of the animal.

Cite This Study
Claire A. Van Ummersen, Frances C. Cogan (1965). Experimental Microwave Cataracts: Age as Factor in Induction of Cataracts in the Rabbit.
Show BibTeX
@article{experimental_microwave_cataracts_age_as_factor_in_induction_of_cataracts_in_the__g5233,
  author = {Claire A. Van Ummersen and Frances C. Cogan},
  title = {Experimental Microwave Cataracts: Age as Factor in Induction of Cataracts in the Rabbit},
  year = {1965},
  
  
}
No DOI on file for this study.

Quick Questions About This Study

Scientists recognized that biological responses to radiation often vary with age. By comparing different age groups of rabbits exposed to microwaves, researchers could determine whether older animals were more susceptible to developing lens opacities than younger ones.
Yes, the basic mechanism of microwave-induced cataracts is similar across mammals. The lens proteins that become damaged by microwave heating are structurally similar in rabbits and humans, making these animal studies relevant for understanding human risk.
The lens of the eye lacks blood circulation to dissipate heat generated by microwave absorption. This means thermal energy builds up more easily in eye tissue compared to other body parts, potentially causing protein damage and opacity.
Older lens proteins are generally more fragile and less able to maintain their clear structure when heated. Age-related changes in protein composition and cellular repair mechanisms likely make older individuals more susceptible to microwave-induced cataracts.
Today's wireless devices emit microwaves similar to those studied in 1965, but we're exposed for much longer periods. If age increases vulnerability as this research suggests, lifetime users may face cumulative risks that weren't anticipated.