Belladonna - Eye symptoms. Deadly Nightshade, Bellad, Belladona. Boiron and Homeodel WHP - Washington Homeopathic Hylands and Standard. Sixteenth century Italian women reportedly applied belladonna solutions to their eyes to dilate the pupils and achieve a dreamy and supposedly more desirable. Belladonna (Atropa belladonna) is a poisonous plant that has been When your eye doctor dilates your eyes, belladonna is in the eye drops.