Blue light is very bad for the eyes, significantly more bad than any other color.
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This is because all visible blue light passes through the cornea and lens and directly reaches the retina. That, in turn, [/FONT]kills photo-receptor cells as the signaling molecule on the membrane dissolves (changes that resemble those of macular degeneration can be observed, which can lead to permanent vision loss). Photo-receptor cells do not regenerate in the eye. If you destroy them...they're "dead, Jim".
Such an effect does not occur with exposure to other colors (red, yellow, green or anything between R&G).
[FONT="]The added blue light exposure from computer screens, TV screens and smartphones can [/FONT][FONT="]increase risk of macular degeneration over time (and further, it adds [/FONT]digital eye strain[FONT="]). More powerful exposure like from lasers it's extremely damaging. Of course, exposure to lasers of any color is damaging from a power level above (and also this is time-dependent), but think of blue beam exposure as x10 more damaging, because blue light has 100% penetration vs human eye.
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