Liquid collyriums were composed of ophthalmic powders, or waters, such as rose-water, plantain-water, that of fennel, eyebright, etc., in which was dissolved tutty, white vitriol, or some other proper powder.
Colloidal liquids were prepared by blending eye-friendly substances such as rose water, plantain water, and fennel water with ingredients like tutty and white vitriol to create a medicinal liquid.