i'm also suprised that Visine isn't something available in Ireland. if you wear contacts, perhaps stop wearing them for a few days & let your eyes breathe. whenever i have some extended redness, i wear my glasses for a day or two to give them a break.
maybe it's your mascara or liner? if you're using a pencil, sharpen it a few times & change the mascara. lastly wash any brushes as a precaution. i once had a bad reaction to my mascara & ended up w/REALLY red eyes. i did all of the above & wore glasses for 2 days & it cleared up.
if all else fails, get to a doctor. s/he might be able to Rx something.