Effect of microwaves on the eye

PAPER manual IEEE Trans Biomed Eng 1969 Animal study Effect: mixed Evidence: Low

Read original paper → DOI: 10.1109/tbme.1969.4502597 PMID: 5775611 Evidence Lab

Abstract

The utilization of microwave energy to produce an acute effect on the eyes of rabbits was experimentally investigated using both CW and pulsed power at 5.5 GHz. When present, lens opacities were developed within four days after exposures of sufficient intensity and duration; three minutes at the one-watt level were found to exceed cataractogenic threshold, while at the ½-watt level no acute effect was observed following a two-hour exposure.

AI evidence extraction

At a glance

Study type

Animal study

Effect direction

mixed

Population

Rabbits

Sample size

—

Exposure

microwave · 5500 MHz · 3 minutes; 2 hours

Evidence strength

Low

Confidence: 74% · Peer-reviewed: yes

Main findings

In rabbits exposed at 5.5 GHz using CW and pulsed power, lens opacities (when present) developed within four days after exposures of sufficient intensity and duration. Three minutes at the one-watt level exceeded the cataractogenic threshold, while at the 0.5-watt level no acute effect was observed after a two-hour exposure.

Outcomes measured

Lens opacities
Cataractogenic threshold (acute eye effects)

Limitations

Sample size not reported in abstract
Exposure metrics reported in watts rather than SAR or power density
Details of exposure setup (distance, field strength, dosimetry) not provided in abstract
CW vs pulsed results not separated in abstract

Suggested hubs

rf-health-effects (0.85)
Animal experiment assessing microwave (5.5 GHz) exposure effects on the eye/lens.

View raw extracted JSON

{
    "study_type": "animal",
    "exposure": {
        "band": "microwave",
        "source": null,
        "frequency_mhz": 5500,
        "sar_wkg": null,
        "duration": "3 minutes; 2 hours"
    },
    "population": "Rabbits",
    "sample_size": null,
    "outcomes": [
        "Lens opacities",
        "Cataractogenic threshold (acute eye effects)"
    ],
    "main_findings": "In rabbits exposed at 5.5 GHz using CW and pulsed power, lens opacities (when present) developed within four days after exposures of sufficient intensity and duration. Three minutes at the one-watt level exceeded the cataractogenic threshold, while at the 0.5-watt level no acute effect was observed after a two-hour exposure.",
    "effect_direction": "mixed",
    "limitations": [
        "Sample size not reported in abstract",
        "Exposure metrics reported in watts rather than SAR or power density",
        "Details of exposure setup (distance, field strength, dosimetry) not provided in abstract",
        "CW vs pulsed results not separated in abstract"
    ],
    "evidence_strength": "low",
    "confidence": 0.7399999999999999911182158029987476766109466552734375,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "microwave",
        "5.5 GHz",
        "CW",
        "pulsed power",
        "rabbit",
        "eye",
        "lens opacities",
        "cataract"
    ],
    "suggested_hubs": [
        {
            "slug": "rf-health-effects",
            "weight": 0.84999999999999997779553950749686919152736663818359375,
            "reason": "Animal experiment assessing microwave (5.5 GHz) exposure effects on the eye/lens."
        }
    ]
}

AI can be wrong. Always verify against the paper.

AI-extracted fields are generated from the abstract/metadata and may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.

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