What's Line Eyes?

Saiba
Hey... So please don't get annoyed but what's line eyes? Is this an actual condition or just a trick of the mind?
I'm slightly worried I might want a BFP so badly I'm imagining things lol!
Dumb thing is I told myself yesterday, I will do a test this morning being 5 days to my period... But last night had a stomach ache (non pregnancy related... More Spicy Food related lol) Anyways I went to the loo. So now I'm not sure if I have line eyes...