WEB-022Original text reviewed
Frequency-dependent corneal injury at 40, 75 and 95 GHz
The reported finding
Reversible corneal injury occurred; corrected 50% injury-threshold estimates were 206.0, 142.8 and 145.6 mW/cm² at 40, 75 and 95 GHz respectively.
Reading it carefully
2019 correction replaces Table 4; corrected values used here. 75 GHz is near the automotive band, not a test of automotive radar signals. Ocular conditions largely normalised within days.
Inside the study
Technology connection
Frequency-related ocular research; not an automotive FMCW radar exposure.
Publication type
Original journal research
Exposure conditions
40, 75 or 95 GHz continuous waves; focused local rabbit-eye exposures, 6 min; high-power thermal threshold regime.
Design & controls
Pigmented rabbit eyes; dose-response and clinical follow-up of epithelial/stromal injury.
Statistics
See reported finding and original tables; effect sizes not independently recalculated.
Related research & shared cohorts
Same Japanese ocular programme as WEB-021; publications are not independent research teams.
The protection question raised
Which exposure conditions and biological models reproduce this response, and what would establish its relevance to health?
Source verification
Original methods/results sections reviewed; no independent raw-data or supplement audit.
Where to find the result
Original results/methods sections
Editorial notices
Correction published 26 November 2019 (10.1007/s10762-019-00641-w) replaces Table 4. Corrected DD50 values are used in this record; correction PDF checked 21 October 2026.
Funding
Not established from retrieved original abstract.
Conflicts of interest
Not established from retrieved original abstract.
Original publication
Masami Kojima; Yukihisa Suzuki; Kensuke Sasaki; Masao Taki; Kanako Wake; Soichi Watanabe; Maya Mizuno; Takafumi Tasaki; Hiroshi Sasaki. Ocular Effects of Exposure to 40, 75, and 95 GHz Millimeter Waves. Journal of Infrared, Millimeter, and Terahertz Waves. 2018. doi:10.1007/s10762-018-0497-z.