条文：偃月瞳含偃月形，一湾白气血下生，脑风积热下注眼，肝肾俱亏致损明。
通明散内防芩入，人参白茯细辛茺，坠医丸用石决麝，青鲤青羊牛胆熊。
方剂：偃月通明散方
防风 黄芩 人参 茯苓各一钱 细辛五分 茺蔚子二钱
右为粗末，水二盏，煎去一盏，夜食后去渣温服。
五胆偃月坠翳丸方
石决明一两 麝香少许 青鱼胆 鲤鱼胆 青羊胆各七个 牛胆五钱 熊
胆一分
右为细末面糊为丸，如桐子大，空心茶清送下五分。
【注】[1]偃月内障，瞳神内上半边有白气一湾，隐隐似新月之状，覆垂向下。
[2]缘脑风积热注入眼中，致成内障，为肝肾俱劳之证，宜服通明散坠翳
丸。
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条文：旋螺尖起如螺壳，乌睛色变极痛疼，壳形尖起色青黑，肝经积热血瘀凝。
轻宜泻脑防辛梗，辛芍天冬五味茺；重者泻肝硝黄桔，柴芩知母细车行。
方剂：泻脑汤方
防风二钱 细辛五分 桔梗一钱 赤芍药一钱 天门冬（去心）一钱 五
味子五分 茺蔚子二钱
右为粗末，以水二盏，煎至一盏，食后，去渣温服。
泻肝饮子
芒硝 大黄 桔梗 柴胡 黄芩 知母（炒） 细辛 车前子各一钱
右为粗末，以水二盏，煎至一盏，食后，去渣温服。
【注】[1]旋螺外障，气轮之内乌珠色变青白，如螺蛳之壳，其色初青久黑，其
形尖圆，乃肝经积热亢极，瘀血凝滞所致。
[2]轻者宜泻脑汤，重者用泻肝饮子。
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Clause: In the condition of "Yanyue" (Crescent-shaped) internal cataract, the pupil exhibits a crescent-shaped opacity, with a bay of white qi arising from below. This is caused by brain wind and accumulated heat pouring downward into the eyes, as well as deficiency in both the Liver and Kidney leading to impaired vision.
For treatment, Fangfeng (Saposhnikovia Root) and Huangqin (Scutellaria Root) should be added to Tongming San; the formula also contains Renshen (Ginseng), Baifuling (Poria), Xixin (Asarum), and Chongweizi (Eclipta Fruit).
If using Zhiyi Wan (specifically Wudan Yanyue Zhuanyi Pill), Shijueming (Concha Arcae), Shexiang (Musk), Qingyudan (Green Fish Gallbladder), Liyudan (Carp Gallbladder), Qingyangdan (Blue Sheep Gallbladder), Niudan (Ox Gallbladder), and Xiongdan (Bear Gallbladder) are required.
Formula: Yanyue Tongming San Decoction
Fangfeng (Saposhnikovia Radix) 3g, Huangqin (Scutellariae Radix) 3g, Renshen (Ginseng Radix) 3g, Fuling (Poria) 3g, each 1 qian; Xixin (Asari Radix) 1.5g; Chongweizi (Ecliptae Fructus) 6g.
Grind the above herbs into coarse powder. Add two cups of water, decoct until one cup remains. Strain and take warm after night meal.
Wudan Yanyue Zhuanyi Pill Formula
Shijueming (Concha Arcae) 30g, Shexiang (Moschus) a small amount, Qingyudan (Bile of Cyprinus carpio var. auratus) seven units, Liyudan (Bile of Cyprinus carpio) seven units, Qingyangdan (Bile of Ovis aries) seven units, Niudan (Bile of Bos taurus) 15g, Xiongdan (Bile of Ursus arctos) 0.3g.
Grind the above herbs into fine powder and bind with wheat paste to make pills, sized like paulownia seeds. Take 1.5g with clear tea on an empty stomach.
[Note] [1] "Yanyue" internal cataract refers to a bay of white qi appearing in the upper half inside the pupil, faintly resembling the shape of a new moon, hanging downwards.
[2] This arises because wind and accumulated heat from the brain pour into the eyes, causing internal cataracts; it is a syndrome of exhaustion in both the Liver and Kidney. It is appropriate to administer Tongming San and Zhuanyi Wan.
Clause: The protrusion of "Xuanluo" (Spiral-shell) external opacity resembles a shell, with changes in the color of the black cornea and extreme pain. The shape is pointed and raised like a shell, with a bluish-black color, caused by accumulated heat in the Liver Meridian and coagulation of blood stasis.
For mild cases, Xie Nao Tang (Brain-Draining Decoction) is suitable, containing Fangfeng (Saposhnikovia Root), Xixin (Asarum), Jiegeng (Platycodon Root), Chishao (Red Peony Root), Tiandong (Asparagus Tuber), Wuweizi (Schisandra Berry), and Chongweizi (Eclipta Fruit); for severe cases, Xie Gan Yinzi (Liver-Draining Infusion) is used, containing Mangxiao (Natrii Sulfas), Dahuang (Rhubarb Root), Jiegeng (Platycodon Root), Chaihu (Bupleurum Root), Huangqin (Scutellaria Root), Zhimu (Anemarrhena Rhizome), Xixin (Asarum), and Cheqianzi (Plantago Seed).
Formula: Xie Nao Tang Decoction
Fangfeng (Saposhnikovia Radix) 6g, Xixin (Asari Radix) 1.5g, Jiegeng (Platycodonis Radix) 3g, Chishao (Paeoniae Radix Rubra) 3g, Tiandong (Asparagi Radix, heart removed) 3g, Wuweizi (Schisandrae Chinensis Fructus) 1.5g, Chongweizi (Ecliptae Fructus) 6g.
Grind the above herbs into coarse powder. Add two cups of water, decoct until one cup remains. Strain and take warm after meals.
Xie Gan Yinzi Infusion
Mangxiao (Natrii Sulfas), Dahuang (Rhei Radix et Rhizoma), Jiegeng (Platycodonis Radix), Chaihu (Bupleuri Radix), Huangqin (Scutellariae Radix), Zhimu (Anemarrhenae Rhizoma, stir-fried), Xixin (Asari Radix), Cheqianzi (Plantaginis Semen), each 3g.
Grind the above herbs into coarse powder. Add two cups of water, decoct until one cup remains. Strain and take warm after meals.
[Note] [1] "Xuanluo" external opacity refers to the black cornea within the Qi Wheel (white sclera) changing color to blue-white, resembling a snail shell. Its color is initially blue and turns black over time, and its shape is pointed and round. This is caused by extreme hyperactivity of accumulated heat in the Liver Meridian and stagnation of blood stasis.
[2] Mild cases are suitable for Xie Nao Tang, while severe cases use Xie Gan Yinzi.