Ah, yes, perhaps it is poetic justice (if only the 2 groups were one in the same).  What our mothers use to tell us (at least the boys, you ladies will have to speak up to let us know if she told you this as well), seems to be coming true.

Dont Masturbate!  You'll go blind!

While not exactly the same, it appears that Maybe Viagra will make you go blind as well!  The FDA is investing 50 reports of blindness while using the drug (there is no direct link at this point). 

Now for the delicious irony.  Wouldn't it be great if those 50 were convicted sex offenders?

Who says God does not have a sense of humor!