From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
How to cause Blind Horses to See again, and how to Remove the Cataract.
Early on Good Friday morning, dig Antemonium. Shall take! six rad Valerian, or you may also do so on any Sunday or Friday. Three of these roots cut fine, as near the eyes as you can; the other three dry and pulverize them. Then take an egg and let the white thereof run out, and put the yolk in, and add salt until the egg shell is filled. Then skillfully close it, and set it end ways upon hot ashes, till it becomes hard like a stone. Be careful not to boil it over, because it will never be good. Pulverize it, and fill with this egg the quill of a feather, and blow the contents gently into the horse's eyes. Although it pains, it will destroy the skin that grew over the eye, and make it see again. Probatum.
The grimoire Egyptian Secrets of Albertus Magnus lists this spell.
Timeline of related events
1725Publication of Egyptian Secrets of Albertus Magnus (lists this spell)
1869English-language translation of Egyptian Secrets (lists this spell)