"AES" wrote in message

Yes, you blink, or look away -- but after you open your eyes the bright
incoming light may still be there, very close in angle or position to
the terrain or the instruments you have to look at, so you can't really
easily block it.

Missed approach. Problem solved.

All of these effects can be produced at light intensities way, way below
the level that produces any permanent damage to the retina. Though I'm
no expert on this subject, I have also been told that sustained exposure
to this kind of illumination in a situation where you can't just "turn
it off" and where the light levels, although below permanent damage, are
well above what leads to you to blink, and especially if they occur in
stressful situations with demanding performance requirements, can
rapidly lead to various kinds of psychological distress.

Did an "expert" tell you this?

moo