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Re:LEDs may cause retinal toxicity at occupational domestic ... by toomim on Thursday January 05, 2017 @05:21PM (#13331987)
Yes, in fact the blue part of the spectrum is what works the BEST for light therapy, and also happens to be in the danger zone:

http://www.sunnexbiotech.com/therapist/blue%20light%20damage...

This article explains some of the tradeoffs at the specific wavelengths.

Re:LEDs may cause retinal toxicity at occupational domestic ... by upofadown on Thursday January 05, 2017 @05:46PM (#13332157)
Article by a company with vested interest in green light therapy...

The last time I went down the list of references I was personally not convinced, but not my field...