[alexander_busek]

...infrared laser... One can get microscope burns on the retina that...

An infrared laser - if it were powerful enough - could deproteinize the cornea and the aqueous and vitreous humors. That's because water absorbs (is opaque to) infrared light.

Retinal laser surgery (involving photocoagulation) is performed using argon lasers IN THE VISIBLE SPECTRUM (and near ultraviolet).

Regards,

[null and void]

"Microscope" is supposed to be "microscopic", my typo, sorry.

Other than that, I always wear my laser safety glasses whenever my 60W laser is on, even if the system is buttoned up.

Thanks for the corrections on the mechanism of damage. Damage is damage, avoid!