from Hacker News

Understanding How Violet Light Can Stop Myopia Progression

by plun9 on 5/21/25, 1:51 AM with 6 comments

• by Terr_ on 5/21/25, 6:44 AM

  > The time of day of any potential violet-light therapy for myopia also could matter.

  Before anyone rushes to change desktop backgrounds, any effect might involve actual "violet" wavelengths of light (380nm) [0] as opposed to mix of typical LED-reds and LED-blues that are visually similar. Plus then you have a new risk, with blue light at night affects circadian rhythms.

  I suppose one could create their own light-emitting source, but I'd be afraid of accidentally scorching my retinas with strong invisible UV.

  ____

  [0] https://pubmed.ncbi.nlm.nih.gov/22043319/

• by CommenterPerson on 5/21/25, 11:57 AM

  Happy to see this research. Some old studies showed that Asian children who moved to Australia had a lower incidence of myopia. Perhaps due to more time spent outdoors:

  https://healthland.time.com/2012/05/07/why-up-to-90-of-asian...

• by voidmain on 5/22/25, 4:54 PM

  The science is interesting, but it seems like the solution "go outside" is available regardless of the details?

• by lifeplusplus on 5/21/25, 6:28 AM

  First time hearing this