A dangerous drinking game called "vodka eyeballing" is attracting public attention on YouTube. People need to be aware that anyone who pours vodka directly into his eye risks damaging the surface epithelial cells-often causing pain and infection.
More seriously, "eyeballing" can also lead to permanent vision damage by killing endothelial cells in deeper layers of the eye's cornea. This is unlikely, but possible.
"Eyeballers" do not even get a "quick high" as claimed, because the volume of vodka absorbed by the conjunctiva and cornea is too small to have that effect.
Source: American Academy of Ophthalmology