Kiwi teenagers are being warned against a bizarre eyeball-licking craze sweeping Japan.
Oculolinctus, or 'worming', involves licking the eyeballs of another person, in a fetish-like practice which Japanese teenagers are using to show affection to their love interest.
Media in Japan are reporting a rise in the number of teens suffering from eye infections as a result, and optometrists in New Zealand are warning youths not to follow suit.
One Japanese school reported a third of its 12-year-olds had engaged in `worming', a practice teachers became aware of after realising the eye patches students were wearing in class were not a new fashion trend, but a bid to hide their conjunctivitis, the ShanghaiList.com said.
There is now evidence the craze has arrived on US shores, with the Huffington Post quoting a 29-year-old environmental science student praising the activity.