You should stay calm and do not be panic after you have got face paint in your eye. Face paint are designed to be applied on the sensitive parts of the face, so it is toxic-free and will not cause great danger to your eyes. But it may irritate your eyes, for any foreign object, even water, in eyes can cause irritation. You can rinse your eyes with water. Then artificial tears can be used to flush the remaining face paint out. Your vision will totally recover in several minutes or hours. If your eyes still uncomfortable or blurred. You can purchase over-the-counter eye drops in a pharmacy or turn to your doctor. Since it is also possible that you are allergic to certain ingredients in the face paint, you should consult your doctor if the cleansing is not helpful.