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Message: <blockquote data-quote="Alexis Powell" data-source="post: 3598043" data-attributes="member: 5327">That article is representative of many that I've seen thus far. The author is an authority on light-induced retinal damage. He takes it seriously, but he is also not as alarmist as many eclipse web pages and eclipse workshops. Damage seems to be primarily related to light intensity, not heat or UV. With naked eye viewing, damage appears rarely to occur or to be permanent, except with extended continuous or cumulative viewing. Obviously, using binoculars would speed up the process considerably. I take eye (and ear, and health in general) protection seriously, but I'm still not convinced that anyone has to be taught not to look at the sun (under normal bright conditions) through bins, nor do they have to fear catching the sun through their bins briefly while watching a flying bird. Some folks have told me that bins that resist flare are dangerous because you won't know you are about to see the sun until it is in the FOV and that by then it is too late and you will be permanently blinded (or at least that permanent eye damage will obtain). That is the sort of claim that I contest.--AP</blockquote>