Eyeball licking, which is also known as "worming" or oculolinctus, has existed for quite some time, and there are numerous clips of people engaging in the act on YouTube.

Eyeball licking, which is also known as "worming" or oculolinctus, has existed for quite some time, and there are numerous clips of people engaging in the act on YouTube.
http://www.cbsnews.com/8301-204_162-57589423/japanese-eyeball-licking-trend-carries-blindness-risk/