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First Type: Pill-shaped Pterygium (Wan Yi). The so-called "Pill-shaped Pterygium" refers to a round, raised lesion on the black pupil (cornea/iris area). It appears smaller when viewed in sunlight and larger in dim light. It may be clear or obscure, leading to blurred vision.

Bu Gan San (Liver-Nourishing Powder)
Shu Di Huang (Prepared Rehmannia Root), Bai Fu Ling (Poria with Bark Removed), Jia Ju (Chrysanthemum), Xi Xin (Asarum), each half tael; Shao Yao (Peony Root), three qian; Bai Zi Ren (Biota Seed), one qian; Gan Cao (Licorice Root), half qian. The above herbs are cut into pieces to form a powder. Take three qian per dose, decoct with one and a half cups of water, and take after meals.

Bu Shen Wan (Kidney-Nourishing Pill)
Ba Ji Tian (Morinda Root, Heart Removed), Shan Yao (Dioscorea Rhizome), Po Gu Zhi (Cibotium Rhizome, Stir-fried), Hui Xiang (Fennel), Mu Dan Pi (Moutan Cortex), each half tael; Rou Cong Rong (Cistanche Stem, Washed), one tael; Gou Qi Zi (Goji Berry). The above herbs are ground into fine powder, mixed with refined honey to make pills the size of paulownia seeds. Take thirty pills per dose, on an empty stomach, washed down with salt water.

Second Type: Ice-like Pterygium (Bing Yi). The so-called "Ice-like Pterygium" is firm like frozen ice. From the side, it appears transparent extending into the pupil. Its shape remains the same whether viewed in dim light or sunlight. It is accompanied by pain and tearing. This condition arises because excessive Gallbladder Qi attacks the Liver. It is suitable to take the following medicine.

Tong Gan San (Liver-Unblocking Powder)
Shan Zhi Zi (Gardenia Fruit), Ji Li (Tribulus Fruit, stir-fried, thorns removed), Zhi Ke (Aurantii Fructus, white pith removed), Jing Jie (Schizonepeta Spike), each half tael; Che Qian Zi (Plantago Seed), Niu Bang Zi (Arctii Fructus, stir-fried), each one fen. The above herbs are ground into fine powder. Take two qian per dose, mixed with bitter bamboo leaf decoction, and take after meals.

Third Type: Slippery Pterygium (Hua Yi). The so-called "Slippery Pterygium" resembles a mercury bead, slightly yellowish. It is neither painful nor itchy, has no tearing, and surrounds the pupil, obscuring vision.

Fourth Type: Rough Pterygium (Se Yi). The so-called "Rough Pterygium" is slightly reddish in color, sometimes clustered, sometimes spread out, with slight luster on both sides. The pupil looks like coagulated fat. It causes intermittent roughness and pain, but without tearing.

Fifth Type: Scattered Pterygium (San Yi). The so-called "Scattered Pterygium" resembles scale spots. Alternatively, millet-sized grains may appear under the eyelids and ulcerate. There is day and night pain, with the pupil being the most painful, often accompanied by hot tears.

The above three conditions are all caused by the transmission between the Liver and Lung, with Wind-Heat stagnating. It is suitable to take:

Ba Wei Huan Jing San (Eight-Ingredient Eye-Recovering Powder)
Bai Ji Li (Tribulus Fruit, stir-fried, thorns removed), Fang Feng (Saposhnikovia Root), Fen Cao (Licorice Root, honey-fried), Mu Zei (Equisetum Hiemale), Shan Zhi Zi (Gardenia Fruit, stir-fried, husk removed), each half tael; Cao Jue Ming (Cassiae Semen, stir-fried), one tael. The above herbs are ground into fine powder. Take after meals, mixed with Ophiopogon Japonicus (Mai Dong, heart removed) decoction.

Sixth Type: Horizontal Splitting Pterygium (Heng Kai Yi). In this condition, the upper part protrudes horizontally like a sword ridge, while the lower part is slightly thin. It is not red or painful. Cases of this disease are rare.

Seventh Type: Floating Pterygium (Fu Yi). The upper part of this disease is white like ice light, surrounding the pupil. Initially, it grows from the inner canthus to the black pupil. It is neither painful nor itchy, and there is no blood congestion.

Eighth Type: Sunken Pterygium (Chen Yi). The whiteness of this disease is hidden beneath the black pupil. It can only be seen when looking carefully towards the sun. It may transmit between the two eyes. Pain is lighter in the morning and heavier at night, occasionally... [Text incomplete].

Ninth Type: Crescent Moon Pterygium (Yan Yue Yi). The membrane of this disease resembles coagulated fat, thick on one side and thin on the other, like a crescent moon. Its color is bright white without flaws.

All the above conditions are incurable. They are attributed to karmic retribution from past lives. Even if strong medication is used, there will be no relief.

Tenth Type: Date Flower Pterygium (Zao Hua Yi). The circumference of this condition resembles saw teeth, with four or five petals merging together. It is reddish, causing stabbing pain like needles. Vision is obscured like smoke. Symptoms are mild in the morning but severe during the day, with tearing and darkness preventing sight.

Eleventh Type: White Pterygium with Yellow Center (Bai Yi Huang Xin). The four sides are white, but the center is yellow. The inner and outer canthi are slightly red. There is occasional sticky tearing. The lesion is circular on the black pupil.

These two conditions are also caused by transmission between the Liver and Lung, with Wind-Heat stagnating. It is suitable to take the previously mentioned Huan Jing San and the following Zhui Yi Wan (Pterygium-Descending Pill). [Formula for Zhui Yi Wan is not provided in the text].

Twelfth Type: Black Flower Pterygium (Hei Hua Yi). This condition presents as bluish-green. The inner and outer canthi are rough and painful, with frequent tearing. There is a bitter taste in the mouth and loss of appetite. This is due to the Gallbladder suffering from Wind-Cold. It is suitable to take Liang Dan Wan (Gallbladder-Cooling Pill).

Liang Dan Wan (Gallbladder-Cooling Pill)
Huang Lian (Coptis Rhizome, washed, not exposed to fire), Jing Jie (Schizonepeta Spike), Huang Qin (Scutellaria Root), Cao Long Dan (Gentiana Root), each half tael; Lu Hui (Aloe), Fang Feng (Saposhnikovia Root), each one tael; Huang Bo (Phellodendron Bark, bark removed), Di [Herb Name Missing - likely Di Gu Pi/Cortex Lycii]. The above herbs are ground into fine powder, mixed with honey to make pills the size of paulownia seeds. Take thirty pills per dose, washed down with Mint Decoction.

Thirteenth Type: Congenital Affection (Tai Huan). This condition appears in children aged two or three, who must look closely to see objects and have slow eye movement. By age four or five, the pupils turn white and vision becomes obscured and lost. It progresses to an incurable state. This is caused by heat damaging the eyes during fetal development.

Fourteenth Type: Transformation of Five Winds (Wu Feng Bian). The Five Winds transform into internal cataracts. The symptoms include alternating colors, severe headache, and absence of tearing. It is caused by toxic wind and brain heat. During the day... [Text incomplete], often sighing with worry.

Fifteenth Type: Thunder Head Wind (Lei Tou Feng). Toxic heat qi rushes into the eyes. In middle age, it affects the pupil, which may vary in size. Complete darkness and blindness occur.

Sixteenth Type: Shock and Trauma (Jing Zhen). Due to further blows to an already diseased eye, an internal cataract forms. There is day and night pain, obstruction of vision, red membranes surrounding the eye, and inability to see the "Three Lights" (Sun, Moon, Stars), resulting in chronic internal cataracts.

The above four conditions are all incurable. Acupuncture and surgery are difficult to apply, and medicinal efficacy is negligible. If treated forcibly, one might only use Huan Jing San... [Text incomplete].

Seventeenth Type: Green Wind (Lv Feng). At onset, there is dizziness. The temples pull towards the pupil, and the nasal bridge is painful. Red and white flowers may appear. It may start on the left then right, right then left, or simultaneously in both eyes. Vomiting may occur. This is a Liver-Lung disease. Heat in the Liver manifests first on the left; Heat in the Lung manifests first on the right; simultaneous disease manifests in both. First take Ling Yang Jiao San (Antelope Horn Powder), then take Huan Jing San. (Formula see previous).

Ling Yang Jiao San (Antelope Horn Powder)
Jia Ju (Chrysanthemum), Fang Feng (Saposhnikovia Root), Chuan Xiong (Ligusticum Rhizome), Qiang Huo (Notopterygium Rhizome), Che Qian Zi (Plantago Seed), Chuan Wu (Aconitum Carleilii, processed, skin and tip removed), each half tael; Ban Xia (Pinellia Tuber, soaked), Ling Yang Jiao (Antelope Horn, sliced), He [Herb Name Missing - likely He Ye/Lotus Leaf]. The above herbs are cut into pieces and decocted with fresh ginger. Alternatively, grind into powder and take after meals mixed with Jing Jie and tea infusion.

Eighteenth Type: Black Wind (Wu Feng). Although the eyes are itchy and painful, there is no dizziness. Vision gradually dims as if obstructed by an object. There is no visible pterygium, but visual phenomena (flowers) may occur. This is caused by the Liver having... [Text incomplete]. It is suitable to take:

Xie Gan San (Liver-Draining Powder)
Yu Li Ren (Prunus Seed), Jing Jie (Schizonepeta Spike), each one fen; Gan Cao (Licorice Root, honey-fried), Da Huang (Rhubarb Root), each half tael. The above herbs are cut into pieces. Take three qian per dose, decoct with one and a half cups of water, and take warm after meals.

Nineteenth Type: Black Wind (Hei Feng). This eye condition is similar to Green Wind, but black flowers appear intermittently. This is due to the Kidney suffering from Wind Evil, with Heat attacking the eyes. It is suitable to cool the Kidney.

Twentieth Type: Blue Wind (Qing Feng). The eyes are neither painful nor itchy. The pupil appears normal, as if healthy. There is slight dizziness and visual phenomena (flowers). Fatigue exacerbates the dimness.

The above two conditions are suitable for treatment with Huan Jing San.

Twenty-first Type: Liver Deficiency Night Blindness (Gan Xu Que Mu). Night blindness is caused by Liver deficiency and exhaustion. Visual phenomena occur frequently, sometimes with headaches. Over time, bilateral blindness ensues. In children, it is due to... [Text incomplete].

Twenty-second Type: High Wind Night Blindness (Gao Feng Que Mu). Both types of night blindness present similarly but have differences. High Wind Night Blindness causes vision loss at dusk. After years, the pupil turns gold... [Text incomplete]. The other type is this one.

The above two conditions are both incurable.

Twenty-third Type: Liver Deficiency Dim Vision (Gan Xu Mu An). Distant vision is unclear. Frequent visual phenomena (spots) appear before the eyes. Both eyes are red. Pain occurs at intervals. Diplopia (seeing one thing as two) occurs. This is due to Liver Deficiency. Slightly add cooling agents to treat it. (Formula see previous).