对于近视的红灯仪器超过了安全限制
Lisa A Ostrin1, Alexander W Schill1
1University of Houston College of Optometry, Houston, Texas, USA.
概括
低水平红光 (LLRL) 治疗儿童近视可能会带来风险. 连续查看LLRL设备3分钟可以超过安全限制,可能会损害视网膜.
科学领域:
- 眼科医生 眼科 眼科
- 生物医学工程 生物医学工程
- 摄影生物学 摄影生物学
背景情况:
- 低水平红光 (LLRL) 疗法是儿童近视的新兴治疗方法.
- 之前的研究表明,LLRL有效地减少了轴延长和近视的进展.
- 儿童近视控制的LLRL设备的安全参数需要彻底调查.
研究的目的:
- 描述用于近视控制的两个LLRL设备的光学输出.
- 为了确定这些设备造成的热和光化学损伤的最大允许暴露 (MPE) 极限.
- 评估LLRL治疗近视儿童的安全性.
主要方法:
- 分析了两个LLRL设备 (Sky-n1201a,未来视觉).
- 根据ANSI标准使用集成球辐射计测量光学功率.
- 视网膜斑点大小使用模型眼睛和光束造型仪确定;角膜/视网膜辐射量和MPE计算.
主要成果:
- 这两种设备都被归类为1类激光产品.
- 天空n1201a:波长为654nm,功率为0.2mW,视网膜辐射量为7.2W/cm2.
- 未来视觉:波长为652nm,功率为0.06mW,视网膜辐射率为0.08W/cm2.
- 对于这两种设备来说,3分钟的观看接近或超过了视网膜损伤的MPE极限.
结论:
- 连续查看评估的LLRL设备3分钟的风险光化学和热视网膜损伤.
- 临床医生在使用LLRL治疗儿科近视时必须谨慎.
- 需要进行进一步的研究,以确定LLRL近视控制的最终安全标准.
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