whiteskulleton
New member
- Joined
- Dec 9, 2022
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- 1
In terms of eye safety, is it wrong to compare irradiance from LED flashlight to a laser? In a published journal article titled "Optically Improved Mitochondrial Function Redeems Aged Human Visual Decline", they tried to improve eye function by shining a light into people's eyes for 3 minutes every day. The light was 40 mW/cm^2 at the cornea and they used "simple commercial DC torches" to do it. If the pupil of an eye is between 3 mm to 6 mm in diameter that would be 2.8-11.3 mW entering the eyes for 3 minutes. Would this be the equivalent effect of shining a 670-nm laser at 5 mW in the eye? That is the equivalent of shining a class 3B laser in your eye which is frowned upon which seems to indicate that there is a variable that I am missing when comparing LED lights to lasers.
I'm not trying to repeat the results with a laser or anything. I am trying to understand how dangerous it is to point a LED flashlight in your eye from a scientific standpoint. Is 10 mW from a light through the pupil of an eye via LED just as damaging as 10 mW from a laser? Since eye damage from lasers is more well documented, it is it correct to use laser safety standards for LED flashlights?
I'm not trying to repeat the results with a laser or anything. I am trying to understand how dangerous it is to point a LED flashlight in your eye from a scientific standpoint. Is 10 mW from a light through the pupil of an eye via LED just as damaging as 10 mW from a laser? Since eye damage from lasers is more well documented, it is it correct to use laser safety standards for LED flashlights?