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To: ajtj99 who wrote (97403)5/11/2009 8:18:51 PM
From: benwood  Respond to of 116555
 
It's the UV that's damaging. The sun shining in your eyes is far more damaging that a reflection off the water. There's nothing about the reflection itself that's more damaging. It becomes somewhat polarized, but that is not more damaging. The fact that much of the sunlight enters the water means that the reflected light is *less* damaging than the direct sunlight.

But maybe what you are thinking of is that if one is say out on a boat, then one gets both direct sun, plus a sizable amount of reflected sun, and therefore can burn (or go blind <g>) much more quickly.

When I went sailing for a week some years ago, I remember some "old" people in the marina whose faces were like dried prunes. Yet they were only around 60 years old; and it's likely they never used sunscreen.