The poison ivy plant contains sap or oil that can enter the eye. Carefully wash your eyes from the inside out, around the closed eye. You can use a mild soap solution and rinse it with a lot of water. Do not treat yourself or rub the eye, but urgently consult your ophthalmologist thereafter, who will prescribe topical medications and oral steroids. Prednisone at home can help while waiting to see the doctor. However, avoid applying any creams around the eye region because they can irritate the conjunctiva.