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[Stutroup]

This really took me by surprise at another forum, but I thought it's good to know (although it IS rare), for the times any of us may be photographing children

Quoth the other place:

Anyone who has used a flash with their camera has experienced the effects of red eye; a condition that happens when the light is coming from an angle too close to the angle of the lens. This being the case, what would happen if you took a picture of a child and only one eye turned red? Would you know what that means?
There is a serious condition called retinoblastoma, a cancerous tumor sometimes found in children that deforms the back of the eye and prevents the red eye effect. More than one photographer has spotted this and alerted their clients that a closer look by a doctor is warranted. Check out the details here.
While no one wants to get a diagnosis like this, retinoblastoma is completely treatable if caught early enough. You may literally save a life with your observation.

http://www.daisyseyecancerfund.org/rb/eye/photography.html#challenge

[mefree]

Very interesting.

[Lorelei]

You don't want to know what an UNtreated retinoblastoma looks like. The more ways to spot them earlier, the better.

/medical librarian