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Please excuse me not having called, I am in Germany at present which makes it a bit difficult.
It is not very likely that the tissue paper got into your eye. If I'd nevertheless did, it world have caused streaming years and the feeling of it in your eye.
Maybe you strain your eyes to much with computer and tv screens?
This is a very probable reason, eyes don't like pressure, especially when they have been strained during the day.
I wish you all the best and thank you for a friendly rating for my help, because without it I won't get any credit for it.