One that wears protective eye gear or corrective lenses will be more likely to have a problem with blackheads around the eyes due to the collection of sweat and dirt that makes direct contact between the eye gear or lenses to the skin. This could be avoided with cleaning your eye gear or lenses daily.
The cause of blackheads around one's eyes may be the reason that some creams what one has applied for the face did not agree and you have got a blackhead near your eyes. And if you have pinched it then it would have spread there.
the cause of Blackheads is from debris forming in the pores of your skin, a couple causes I can think of why they'd form there only would be, Makeup, eyewear, long hair.