They've been the kiddy-fiddlers' first choice of eye-wear for years, but now it seems that tinted spectacles are falling out of fashion and are a thing of the past.
Highly valued for their ability to hide the wearer's shame and also to disguise where their eyes are looking, tinted sunglasses have also served as a 'badge' between paedophiles, helping them to identify each other easily.
However, sales of tinted spectacles have plummetted in the past year.
A spokesman for the underground internet group Tinkerman Express, who would only identify himself as 'Uncle John' offered a possible explanation; "I don't think it's a secret anymore. People are beginning to put two and two together and see tinted spectacles on a middle aged white male as a clear sign that he has an interest in sex with children.
"It's a real shame because it'll be the end of an era if our members have to stop wearing them."
Tinkerman Express offers its members a safe environment in which they can distribute and share special interest images.
The drop in popularity of tinted spectacles is being felt on the High Street. An unnamed spokesman for a leading opticians said; "The drop in sales coincided with a spate of high profile convictions in which all of the guilty were middle aged white males who were all pictured wearing tinted spectacles.
"It is not our policy to ask our customers about their sexual preferences, although most of our staff understand that tinted spectacles invariably means the customer at least likes to look at images of children, if not make and distribute them.
"Unfortunately, unlike clear glass lenses, we need to place orders for tinted lenses well in advance. We have hundreds of pairs of tinted spectacles ready to be distributed to our branches, but there's no point now because they won't sell."