As for the different article, there has some different methods for you to get the foreign body out of your eyes. The first one, please do not rub your eyes after it's happening to avoid the bruise of your corneal. You can close your eyes for several minutes, if the tears will rush it out, you can wink your eye, and the foreign body will rush out of your eyes. If it is a hard article, please prepare a basin of clean water; put your eyes under the surface of water. Wink your eyes for several seconds, the foreign body will go out. The last way, is use cotton swab or clean handkerchief soaking in the cold boiled water, then sweep it softy out from your eyes. Don't rub your eyes by hands, for the sake of avoiding infection by virus. After the leaf out, adapt some eye drops to prevent your eyes from infection. I wonder about the big leaf, how did you get it into your eyes? Sounds weird!
