Ocular Effects of Exposure to 40, 75, and 95 GHz Millimeter Waves
Ocular Effects of Exposure to 40, 75, and 95 GHz Millimeter Waves
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DOI：
10.1007/s10762-018-0497-z
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发表时间：
2018-09-01
影响因子：
2.9
通讯作者：
Sasaki, Hiroshi
中科院分区：
文献类型：
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作者：
Kojima, Masami;Suzuki, Yukihisa;Sasaki, Hiroshi
本研究的目的是建立40、75和95 GHz连续毫米波(MMW)致眼损伤的模型，从而评估暴露于热损伤诱导的毫米波所导致的眼损伤的临床过程。这项研究还考察了眼损伤与入射功率密度的相关性。通过聚焦型透镜天线对有色兔眼进行40、75和95 GHz毫米波照射。毫米波照射10分钟后，可观察到轻微的眼部损伤，包括角膜厚度减少和透明度降低。瞳孔周围弥漫性荧光素染色显示角膜上皮损伤。毫米波照射后第1天，裂隙灯检查显示中央瞳孔带有一圆形混浊，并伴有荧光染色。表明角膜基质受损的角膜水肿在毫米波照射后1天达到峰值，厚度逐渐下降至正常。暴露三天后，尽管角膜厚度比暴露前略有增加，但眼部状况已接近正常。在相同的入射功率密度下，眼损伤的50%概率(DD50)约为40&95ae 75 GHz。
The objective of this study was to develop a model of ocular damage induced by 40, 75, and 95 GHz continuous millimeter waves (MMW), thereby allowing assessment of the clinical course of ocular damage resulting from exposure to thermal damage-inducing MMW. This study also examined the dependence of ocular damage on incident power density. Pigmented rabbit eyes were exposed to 40, 75, and 95 GHz MMW from a spot-focus-type lens antenna. Slight ocular damage was observed 10 min after MMW exposure, including reduced cornea thickness and reduced transparency. Diffuse fluorescein staining around the pupillary area indicated corneal epithelial injury. Slit-lamp examination 1 day after MMW exposure revealed a round area of opacity, accompanied by fluorescence staining, in the central pupillary zone. Corneal edema, indicative of corneal stromal damage, peaked 1 day after MMW exposure, with thickness gradually subsiding to normal. Three days after exposure, ocular conditions had almost normalized, though corneal thickness was slightly greater than that before exposure. The 50% probability of ocular damage (DD50) was in the order 40 > 95 ae 75 GHz at the same incident power densities.