Good question, this guy seems to have studied this question: https://medium.com/@alex.kilpatrick/ir-illumination-and-eye-safety-f0804673ca7 https://medium.com/

Good question, this guy seems to have studied this question: https://medium.com/@alex.kilpatrick/ir-illumination-and-eye-safety-f0804673ca7 https://medium.com/@alex.kilpatrick/ir-illumination-and-eye-... He concludes: "If you buy the largest IR floodlight available on Amazon and you stare at it 200 mm (~7") from your face for more than 1000 seconds (~ 16 minutes) there is a possibility you might damage your cornea. So don’t do that. And I doubt anyone would do that because these things get pretty hot at that distance."