An external obstruction of the eye that has the appearance of congealed lard and that in severe cases can cause loss of sight. Congealed-fat screen develops swiftly and is attended by acute eye pain and pain in the brow, redness of the eyes, hot tears, and copious discharge. It is attributable to externally contracted wind-heat toxin invading and contending contending with intense internal liver-gallbladder fire and binding in the eye.
Biomedical correspondence: observed in suppurative keratitis.
Medicinal therapy: Use Gentian Liver-Draining Decoction (龙胆泻肝汤lóng dǎn xiè gān tāng) plus dandelion (Taraxaci Herba, 蒲公英pú gōng yīng), antelope horn (Saigae Tataricae Cornu, 羚羊角líng yáng jiǎo), rhubarb (Rhei Radix et Rhizoma, 大黄dà huáng), and moutan (Moutan Cortex, 牡丹皮mǔ dān pí).