8,655 Studies Reviewed. 86.9% Found Biological Effects. The Evidence is Clear.

Eye Protection in Radar Fields

Bioeffects Seen

W. G. Egan · 1957

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Scientists recognized radar radiation eye hazards requiring protective equipment as early as 1957.

Plain English Summary

Summary written for general audiences

This 1957 study examined eye protection needs for workers exposed to radar radiation, focusing on the development of protective goggles to prevent microwave-induced eye damage. The research addressed growing concerns about cataracts and other eye injuries in radar operators during the early days of military and civilian radar systems. This represents some of the earliest documented recognition that microwave radiation poses specific health risks requiring protective equipment.

Why This Matters

This 1957 research marks a pivotal moment in EMF health science - the first formal acknowledgment that microwave radiation from radar systems posed serious health risks requiring protective equipment. The science demonstrates that even in the 1950s, researchers understood that certain frequencies could cause biological damage, particularly to the eyes which are especially vulnerable to microwave heating effects. What this means for you is that concerns about EMF health effects aren't new or unfounded - they've been documented by scientists for over 65 years. The reality is that radar systems from this era operated at power levels and frequencies similar to those used in modern wireless technology, yet today's devices often lack the same protective considerations that were deemed necessary for radar operators decades ago.

Finding

The use of copper or bronze screen wire has been suggested as a protective measure, especially where personnel hazard becomes particularly important, comparable with the values given in Table 1, for the facilities, propagation transmitters.

In their words

The use of copper or bronze screen wire has been suggested as a protective measure, especially where personnel hazard becomes particularly important, comparable with the values given in Table 1, for the facilities, propagation transmitters.

Figures from the Original Paper

Diagram extracted from the original research document.

graphPage 2 - Spectrophotometric curves showing transmittance percentages for gold film on plastic and glass at various wavelengths.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 1.9 GHz to 18.8 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 1.9 GHz to 18.8 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Study Details

To investigate the potential for microwave radiation to cause cataracts and to design protective goggles.

Measurements were made of the optical and microwave properties of various materials. The optical pro...

The test flanges were located just prior to a tuner section. Measurements showed that good electrica...

Evaporated gold film coating on lenses appears to be a feasible method for protecting eyes from microwave radiation. The effectiveness of different materials was evaluated based on their microwave transmission and optical properties.

Cite This Study
W. G. Egan (1957). Eye Protection in Radar Fields.
Show BibTeX
@article{eye_protection_in_radar_fields_g3940,
  author = {W. G. Egan},
  title = {Eye Protection in Radar Fields},
  year = {1957},
  
  
}
No DOI on file for this study.

Quick Questions About This Study

Radar systems emit concentrated microwave radiation that can heat eye tissues, potentially causing cataracts and other damage. The focused beam and high power levels of military radar made protective goggles necessary for operators working near these systems.
Microwave radiation from radar can cause cataracts by heating the lens of the eye, which has poor blood circulation and cannot dissipate heat effectively. Other potential effects include corneal damage and retinal heating injuries.
Many radar systems operate in similar frequency ranges to WiFi, Bluetooth, and cell phones. While modern devices typically use lower power levels, the fundamental physics of microwave interaction with biological tissue remains the same.
The study focused on developing effective protective goggles, indicating that standard eyewear was insufficient. Specialized materials and designs were needed to block or attenuate the specific microwave frequencies used in radar systems.
This early research proves that microwave radiation health effects were scientifically recognized decades ago, contradicting claims that EMF health concerns are recent or unfounded. It established precedent for protective measures against microwave exposure.