"低级红光"近视控制装置的放射测量和安全性评估
Josh Richards1, Jennifer J Hunter2, Javier Gantes-Nuñez3
1School of Optometry, Indiana University, Bloomington, Indiana, USA.
概括
控制近视的红光治疗可能会对视网膜造成危害. 这项研究发现近视控制装置
科学领域:
- 眼科 眼科
- 生物医学光学
- 医疗器械
背景情况:
- 低水平的红光疗法可以减缓儿童的轴延长.
- 对于一些用于近视控制的红灯装置的安全性存在担忧.
- 了解光学特征和潜在的危害对于设备安全至关重要.
研究的目的:
- 为了研究特定的红光近视控制装置 (SECONEE sky-n1201a) 的光束特性.
- 评估设备的光辐射对视网膜的潜在危害.
- 将视网膜暴露水平与已确定的安全标准进行比较.
主要方法:
- 通过人工瞳孔 (1-9毫米) 量化的光束分歧和总流量.
- 根据瞳孔间距离设置测量出口度.
- 视网膜暴露水平与美国国家标准协会 (ANSI) Z80.36-2021限制值进行比较.
主要成果:
- 该装置发射了具有可变出口度的共聚红光束 (655 nm).
- 随着人造瞳孔直径的增加,
- 视网膜暴露超过ANSI热和光化学限制,分别为瞳孔直径>1mm和>5mm.
- 对于大于5毫米的瞳孔,在100秒内达到潜在的光化学危险.
结论:
- 该设备的光学设计导致视网膜暴露取决于瞳孔大小,适应和眼睛运动.
- 视网膜辐射暴露可能超过ANSI安全限值,挑战"低水平"的指定.
- 需要对红灯近视控制装置进行进一步的安全评估.
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