华佗禁方。
令病患自用手两指，擘所患眼。垂空咒之曰，疋疋，屋舍狭窄，不容宿客，即出也。
伤寒方末，亦有眼方，姚方。目中冷泪出 ，赤痒，乳汁煎方。
黄连三分，蕤仁二分，干姜四分，以乳汁一升，渍一宿，微火煎取三合，去滓。取米大
，敷 。
睛为所伤损破方。
牛旋，日二点，避风，黑睛破，亦瘥。
附方
范注方，主目中泪出，不得开，即刺痛方。
以盐如大豆许，纳目中，习习去盐，以冷水数洗目，瘥。
《博济方》，治风毒上攻，眼肿痒涩，痛不可忍者，或上下脸 ，赤烂浮翳，瘀肉侵睛
，神效驱风散，五倍子一两，蔓荆子一两半，同杵末，每服二钱，水二盏，铜石器内煎及一
盏，澄滓。热淋洗，留滓二服，又根据前煎淋洗。大能明眼目，去涩痒。
《简要济众》，治肝虚，目睛疼，冷泪不止，筋脉痛，及眼羞明怕日，补肝散。
夏枯草半两，香附子一两，共为末，每服一钱，蜡茶，调下无时。
《圣惠方》，治眼痒急，赤涩，用犬胆汁注目中。
又方，治风赤眼。
以地龙十条，炙干为末，夜卧以冷茶调下，二钱匕。
又方，治伤寒热，毒瓦斯攻眼，生白翳。
用乌贼，鱼骨二两，不用大皮，杵末，入龙脑少许，更研令细，日三四度，取少许点之。
又方，治久患内障眼。
车前子，干地黄，麦门冬，等分。为末，蜜丸如梧桐子大，服屡效。
治目方，用黄连多矣。而羊肝丸尤奇异。
取黄连末一大两，白羊子肝一具，去膜。同于砂盆内研，令极细，众手捻为丸。如梧桐
子，每食以暖浆水吞二七枚，连作五剂，瘥。但是诸眼目疾，及障翳，青盲，皆主之。禁食
猪肉及冷水。刘禹锡云，有崔承元者，因官治一死罪囚出活之。因后数年，以病自致死。一
旦崔
为内障所苦，丧明，逾年后，半夜叹息。独坐时，闻阶除间悉 之声。崔问为谁，曰是昔所
蒙活者囚，今故报恩至此。遂以此方告讫而没，崔根据此合服，不数月眼复明，因传此方于世。
又方，今翳家洗眼汤。
以当归，芍药，黄连，等分，停细，以雪水，或甜水，煎浓汁。乘热洗，冷即再温洗。
甚益眼目，但是风毒，赤目，花翳等。皆可用之，其说云，凡眼目之病，皆以血脉凝滞使然
，故以行血药，合黄连治之。血得热即行，故乘热洗之。用者无不神效。
又方，治雀目不计时月。
用苍术二两，捣，罗为散，每服一钱。不计时候，以好羊子肝一个，用竹刀子批破，糁
药在内。
麻绳缠定，以粟米泔一大盏，煮熟为度，患人先熏眼，药气绝即吃之，《简要济众》，
治小儿雀目。
《梅师方》，治目暗，黄昏不见物者。
以青羊肝切，淡醋食之，煮亦佳。
又方，治眼睛无故突一二寸者。
以新汲水灌渍睛中，数易水，睛自入。
崔元亮《海上方》，着此三名，一名西国草，一名毕楞伽，一名覆盆子，治眼暗不见物
，
冷泪浸淫不止，及青盲，天行目暗等。取西国草，日曝干，捣令极烂，薄绵裹之。以饮男乳
汁
中浸。如人行八九里久，用点目中，即仰卧，不过三四日，视物如少年，禁酒油面。
《千金方》，点小儿，黑花眼翳涩痛。
用贝齿一两，烧作灰，研如面，入少龙脑，点之，妙。
又方，常服明目洞视。
胡麻一石，蒸之三十遍，末，酒服，每日一升。
又方，古方明目黑发，槐子于牛胆中渍，阴干，百日。食后吞一枚，十日身轻，三十日
白发黑，百日内通神。孙真人食忌，主眼有翳。取芒硝一大两，置铜器中，急火上炼
之。放
冷后，以生绢细罗，点眼角中，每夜欲卧时
，一度点，妙。
《经验方》，退翳明目白龙散。
马牙硝光净者，用浓纸裹，令按实。安在怀内着肉处，养一百二十日，取出。研如粉，
入少龙脑，同研细，不计年岁深远。眼内生翳膜，渐渐昏暗。远视不明，但瞳仁不破散，并
医得，每点用药末两米许，点目中。
又方，治内外障眼。
苍术四两，米泔浸七日，逐日换水后，刮去黑皮，细切，入青盐一两，同炒。黄色为度
，去盐不用，木贼二两。
以童子小便浸一宿，水淘，焙干，同捣为末，每日不计时候。但饮食菜蔬，纳调下一钱
匕，服甚验。
《经验后方》，治虚劳眼暗。
采三月蔓荆花，阴干为末。以井花水，每空心调下二钱匕，久服长生，可读夜书。
《外台秘要》，主目翳及 肉。
用矾石最白者，纳一黍米大于翳上及 肉上，即冷泪出，绵拭之。令恶汁尽，其疾日日
减翳自消薄，便瘥。矾石须真白好者，方可使用。
又补肝散，治三十年失明。
蒺藜子，七月七日收，阴干，捣散，食后，水服方寸匕。
又疗盲。
猪胆一枚，微火上煎之。可丸如黍米大，纳眼中，食顷，良。
又方，治翳如重者。
取猪胆白皮曝干，合作小绳子如 钗股大小，烧作灰，待冷。便以灰点翳上，不过
三
五度，即瘥。
又方，轻身，益气，明目。
芜菁子一升，水九升，煮令汁尽，晒干。如此三度，捣末，水服方寸匕，日三。
《斗门方》，治火眼。
用艾烧令烟起，以碗盖之，候烟上碗成煤，取下，用温水调化，洗火眼，即瘥。更入
黄连，甚妙。
《广利方》，治眼筑损 肉出。
生杏仁七枚，去皮，细嚼，吐于掌中，及热。以绵裹筋头，将点 肉上，不过四五度，
瘥。
《药性论》云。
空心用盐揩齿，少时吐水中，洗眼，夜见小字，良。
顾含养嫂失明。
含尝药视膳，不冠不食，嫂目疾。须用蚺蛇胆，含计尽求不得。有一童子，以一合授含
，含开乃蚺蛇胆也。
童子出门，化为青鸟而去，嫂目遂瘥。
华佗禁方。
让病人自己用手两个手指，掰开患病的眼。对着虚空念咒语说：“疋疋（拟声词），屋舍狭窄，容不下留宿的客人，请立即出去。”
伤寒方末尾，也有治眼的方子，出自姚氏的方书。眼中冷泪流出，眼红发痒，用乳汁煎煮的方子。
黄连三分，蕤仁二分，干姜四分，用一升乳汁，浸泡一夜，用微火煎取三合药液，滤去药渣。取米粒大小的药末，敷在患处。
眼睛被外伤破损的方子。
牛旋（一种药物或操作，此处指代某种处理或药材，结合语境可能指牛黄或特定制剂，但原文仅二字，暂保留原词或译为“Niu Xuan”），每天点两次，避风，黑睛破损也能痊愈。
附方
范注方，主治眼中流泪，不能睁开，刺痛难忍的方子。
取像大豆大小的盐，放入眼中，待感觉微微刺痒后取出盐，用冷水多次冲洗眼睛，即可痊愈。
《博济方》，治疗风毒上攻，眼睑肿胀发痒涩痛，疼痛难以忍受，或者上下眼睑红肿溃烂、浮翳、瘀肉侵入黑睛，神效驱风散，五倍子一两，蔓荆子一两半，一起捣成粉末，每次服用二钱，水两盏，在铜器或石器中煎至一盏，澄清药渣。趁热淋洗眼睛，留下的药渣分两次再煎淋洗。此方能极大地明亮眼目，去除涩痒。
《简要济众》，治疗肝虚，眼球疼痛，冷泪不止，筋脉疼痛，以及眼睛怕光畏日，补肝散。
夏枯草半两，香附子一两，共研为粉末，每次服用一钱，用蜡茶调服，不拘时间。
《圣惠方》，治疗眼痒急迫，红涩，用犬胆汁滴入眼中。
又一方，治疗风赤眼（风邪引起的红眼）。
用地龙十条，烤干研为粉末，夜间睡觉时用冷茶调服二钱匕。
又一方，治疗伤寒热毒之气攻眼，生成白翳。
用乌贼骨二两，去掉外面的大皮，捣成粉末，加入少许龙脑（冰片），再研磨细，每天三四次，取少量点眼。
又一方，治疗长期患内障眼病。
车前子，干地黄，麦门冬，等量。研为粉末，蜂蜜丸如梧桐子大小，服用屡见疗效。
治疗眼病的方子，使用黄连的很多。而羊肝丸尤其奇异。
取黄连末一大两，白羊子肝一副，去掉膜。一起在砂盆内研磨，令其极细，众人手捻成丸。如梧桐子大小，每餐时用温浆水吞服十四枚，连续服用五剂，即可痊愈。凡是各种眼目疾病，以及障翳、青盲，都主治。禁止食用猪肉及冷水。刘禹锡说，有个叫崔承元的人，因为公务救活了一个被判死罪的囚犯。后来几年，那人因病自杀身亡。有一天崔承元被内障所苦，失明，过了一年多，半夜叹息。独自坐着时，听到台阶间悉悉索索的声音。崔承元问是谁，回答说：“是以前蒙您救活的囚犯，今天特意来报恩至此。”于是把这个方子告诉他就去世了，崔承元按照这个方子配制服用，不到几个月眼睛复明，因此将此方传于世。
又一方，今翳家洗眼汤。
用当归，芍药，黄连，等量，切碎，用雪水，或甜水，煎浓汁。趁热洗眼，冷了再加热洗。
对眼目非常有益，凡是风毒，红眼，花翳等，都可以使用。说法是，凡是眼目的疾病，都是因为血脉凝滞造成的，所以用行血药，配合黄连治疗。血得热则运行，所以趁热洗。使用者无不神效。
又一方，治疗雀目（夜盲症）不计时间月数。
用苍术二两，捣碎，筛为散剂，每次服用一钱。不拘时候，用好羊子肝一个，用竹刀剖开，将药撒在里面。
用麻绳缠紧，用一大盏粟米泔水，煮熟为止，患者先熏眼，药气没了就吃下去，《简要济众》，治疗小儿雀目。
《梅师方》，治疗眼暗，黄昏看不见东西的。
用青羊肝切片，用淡醋送食，煮着吃也很好。
又一方，治疗眼睛无故突出的一二寸的。
用新汲取的水灌渍眼中，多次换水，眼睛自然回纳。
崔元亮《海上方》，记载这三种名目，一名西国草，一名毕楞伽，一名覆盆子，治疗眼暗看不见东西，冷泪浸淫不止，以及青盲，天行目暗等。取西国草，日晒干，捣令极烂，薄绵包裹。用男人的乳汁浸泡。如人行走八九里的时间久，用来点眼中，随即仰卧，不过三四天，视物如少年，禁止饮酒、油、面。
《千金方》，点小儿黑花眼翳涩痛。
用贝齿一两，烧作灰，研如面粉，加入少许龙脑，点之，妙。
又一方，常服明目洞视（看得远且清晰）。
胡麻一石，蒸三十遍，研末，酒服，每日一升。
又一方，古方明目黑发，槐子在牛胆中浸泡，阴干，一百天。饭后吞服一枚，十天身体轻健，三十天白发变黑，百日内通神。孙真人食忌，主治眼有翳。取芒硝一大两，放在铜器中，急火上炼之。放冷后，用生绢细筛，点眼角中，每晚想睡觉时，点一次，妙。
《经验方》，退翳明目白龙散。
马牙硝光净者，用浓纸包裹，按实。放在怀里贴着肉的地方，养一百二十天，取出。研如粉，加入少许龙脑，同研细，不论年岁深远。眼内生翳膜，渐渐昏暗。远视不明，只要瞳仁不破散，都能治好，每次用药末两米粒许，点眼中。
又一方，治疗内外障眼。
苍术四两，米泔水浸泡七天，每天换水后，刮去黑皮，细切，加入青盐一两，同炒。黄色为度，去掉盐不用，木贼二两。
用童子小便浸泡一夜，水洗，焙干，同捣为粉末，每天不拘时候。饮食菜蔬时，调下一钱匕，服用很有效。
《经验后方》，治疗虚劳眼暗。
采三月蔓荆花，阴干为粉末。用井花水，每次空腹调服二钱匕，久服长生，可读夜书。
《外台秘要》，主治目翳及息肉。
用矾石最白的，纳一黍米大于翳上及息肉上，即冷泪出，用绵擦拭。令恶汁尽，其疾日日减，翳自消薄，便痊愈。矾石须真白好者，方可使用。
又补肝散，治疗三十年失明。
蒺藜子，七月七日收，阴干，捣散，饭后，水服方寸匕。
又疗盲。
猪胆一枚，微火上煎之。可丸如黍米大，纳眼中，食顷，良。
又一方，治疗翳如重的。
取猪胆白皮曝干，合作小绳子如钗股大小，烧作灰，待冷。便以灰点翳上，不过三五度，即痊愈。
又一方，轻身，益气，明目。
芜菁子一升，水九升，煮令汁尽，晒干。如此三次，捣末，水服方寸匕，日三。
《斗门方》，治疗火眼。
用艾烧令烟起，以碗盖之，候烟上碗成煤，取下，用温水调化，洗火眼，即痊愈。更入黄连，甚妙。
《广利方》，治疗眼筑损息肉出。
生杏仁七枚，去皮，细嚼，吐于掌中，及热。以绵裹筋头，将点息肉上，不过四五度，痊愈。
《药性论》云。
空心用盐揩齿，少时吐水中，洗眼，夜见小字，良。
顾含养嫂失明。
顾含曾经侍奉药膳，不戴帽子不吃饭，嫂子眼疾。需要用蚺蛇胆，顾想尽办法求不得。有一个童子，给顾合一盒东西，顾打开乃是蚺蛇胆也。
童子出门，化为青鸟而去，嫂子眼睛遂痊愈。
Hua Tuo's Forbidden Prescription.
Instruct the patient to use their own two fingers to pry open the affected eye. Recite a spell into the void, saying: "Pi pi (onomatopoeia), the house is narrow and cannot accommodate a guest who stays overnight; please leave immediately."
At the end of the Shanghan Fang (Treatise on Cold Damage Prescriptions), there is also an eye prescription from Yao's medical texts. For cold tears flowing from the eyes, redness, and itching, use a decoction prepared with milk.
Coptidis Rhizoma (Huanglian) 3 fen, Prunus persica kernel or specific herb Ruiren 2 fen, Zingiberis Rhizoma Exsiccatum (Ganjiang) 4 fen. Soak in one sheng of milk overnight, then simmer gently over low heat until three ge of liquid remain. Strain the dregs. Take particles the size of rice grains and apply externally to the affected area.
Prescription for Eye Injury and Rupture.
Apply Niu Xuan twice daily, avoid wind exposure. Even if the cornea (black pupil) is ruptured, it will heal.
Supplementary Prescriptions
Fan Zhu's Prescription, primarily for tearing, inability to open the eyes, and severe stinging pain.
Take salt the size of a soybean, place it in the eye. When a slight tingling sensation occurs, remove the salt. Wash the eyes several times with cold water until healed.
Bo Ji Fang (Universal Relief Formulas), treating wind-toxin attacking upward, causing eyelid swelling, itching, and astringency, unbearable pain, or redness and ulceration of upper and lower eyelids, floating nebulae, and caruncle tissue invading the cornea. Shenxiao Qufeng San (Divine Efficacy Wind-Expelling Powder): Bletillae Rhizoma (Wubeizi) 1 liang, Viticis Fructus (Manjingzi) 1.5 liang. Pound together into powder. Take 2 qian per dose with two zhan of water, decoct in a copper or stone vessel until one zhan remains. Clarify the dregs. Rinse the eyes while hot. Retain the dregs for two more doses, decocting again as before for rinsing. This greatly brightens the eyes and removes astringency and itching.
Jianyao Jizhong (Brief and Effective Aid to the Masses), treating Liver deficiency, eyeball pain, continuous cold tears, meridian pain, photophobia, and aversion to sunlight. Bugan San (Liver-Nourishing Powder): Prunellae Spica (Xiakucao) 0.5 liang, Cyperi Rhizoma (Xiangfuzi) 1 liang. Grind together into powder. Take 1 qian per dose, mixed with wax tea, at any time.
Shenghui Fang (Sage's Grace Formulas), treating acute eye itching, redness, and astringency. Inject bile from a dog into the eyes.
Another prescription, treating wind-induced red eyes.
Take 10 earthworms (Dilong), dry them by roasting, grind into powder. Before sleep, mix with cold tea and take 2 qian bi.
Another prescription, treating heat toxin from cold damage attacking the eyes, resulting in white nebulae.
Use Sepiae Endoconcha (Wouyu Gu) 2 liang, removing the outer membrane. Pound into powder, add a small amount of Borneolum Syntheticum (Longnao/Bingpian), and grind finely. Apply a small amount to the eyes 3-4 times daily.
Another prescription, treating chronic internal cataracts.
Plantaginis Semen (Cheqianzi), Rehmanniae Radix Preparata (Shu Dihuang), Ophiopogonis Radix (Maidong) in equal parts. Grind into powder, form pills with honey the size of Sophora japonica seeds. Repeated administration yields effective results.
Many prescriptions for eye diseases use Coptidis Rhizoma (Huanglian). However, Sheep Liver Pills are particularly remarkable.
Take 1 da liang of Coptidis Rhizoma powder and one whole liver from a white lamb, removing the membrane. Grind together extremely finely in a mortar. Roll into pills the size of Sophora japonica seeds. Swallow 14 pills with warm grain water before each meal. Complete five courses for a cure. This treats all types of eye diseases, including nebulae, blindness (Qingmang), etc. Avoid pork and cold water. Liu Yuxi stated that a man named Cui Chengyuan once saved a prisoner sentenced to death due to official duties. Years later, that prisoner died by suicide. One day, Cui Chengyuan suffered from internal cataracts and lost his sight. Over a year later, sighing in the middle of the night, he heard rustling sounds on the steps. Asking who it was, the voice replied, "I am the prisoner you once saved, here to repay your kindness." He then received this prescription and passed away. Cui Chengyuan prepared and took the medicine according to this method, and within a few months, his sight was restored. Thus, this prescription was transmitted to the world.
Another prescription, Jin Yi Jia Xi Yan Tang (Modern Nebula Family Eye-Washing Decoction).
Angelicae Sinensis Radix (Danggui), Paeoniae Radix Alba (Baishao), and Coptidis Rhizoma (Huanglian) in equal parts. Finely chop. Decoct strongly in snow water or sweet water. Wash the eyes while hot; reheat when cool.
This is highly beneficial for the eyes, especially for wind-toxin, red eyes, and floral nebulae. The theory states that all eye diseases result from blood vessel stagnation. Therefore, blood-invigorating herbs combined with Coptidis Rhizoma are used. Blood flows when heated, hence the hot wash. Users report divine efficacy.
Another prescription, treating nyctalopia (night blindness) regardless of duration.
Use Atractylodis Rhizoma (Cangzhu) 2 liang, pound and sieve into a powder. Take 1 qian per dose at any time. Take one good lamb liver, slice it open with a bamboo knife, sprinkle the powder inside. Tie tightly with hemp rope. Cook in one zhan of millet washing water until done. The patient should first fumigate the eyes with the steam. Once the medicinal vapor dissipates, eat the liver. Jianyao Jizhong also treats pediatric nyctalopia.
Meishi Fang, treating dim vision where objects cannot be seen at dusk.
Slice green sheep liver and eat it with light vinegar. Boiling is also good.
Another prescription, treating eyes protruding spontaneously by one or two cun.
Flush the eyes with freshly drawn water, changing the water frequently. The eyes will naturally return to their sockets.
Cui Yuanliang's Haishang Fang records three names: one is Xiguo Cao, another is Bilengjia, and the third is Rubus chingii fruit (Fupenzi). It treats dim vision, unceasing cold tears, Qingmang (blindness), and epidemic dim vision. Take Xiguo Cao, sun-dry it, and pound until very soft. Wrap thinly in cotton. Soak in male human milk. After the time it takes to walk eight or nine li, apply drops to the eyes. Lie supine immediately. Within three to four days, vision will be as clear as in youth. Avoid alcohol, oil, and wheat products.
Qianjin Fang, treating black flower nebulae, astringency, and pain in children's eyes.
Take one liang of shell teeth, burn to ash, grind like flour. Add a little Borneolum Syntheticum (Longnao). Apply to the eyes. Excellent.
Another prescription, for regular use to brighten eyes and improve distant vision.
Sesamum indicum seed (Huma) one dan. Steam thirty times, grind into powder. Take with wine, one sheng daily.
Another prescription, ancient formula for brightening eyes and darkening hair. Soak Sophora japonica seeds (Huai Zi) in pig gallbladder, dry in shade for one hundred days. Swallow one pill after meals. In ten days, the body feels light; in thirty days, white hair turns black; within one hundred days, spiritual clarity is achieved. Sun Simiao's Dietary Taboos treat eye nebulae. Take Magnsii Sulfas (Mangxiao) one da liang, place in a copper vessel, refine over high fire. Cool down, sift through fine raw silk, and apply to the corner of the eye once nightly before bed. Excellent.
Jingyan Fang, for removing nebulae and brightening eyes: Bailong San (White Dragon Powder).
Take pure Ma Ya Xiao (Saltpeter), wrap in thick paper, press firmly. Keep against the skin in the chest for one hundred and twenty days. Remove, grind to powder, add a little Borneolum Syntheticum (Longnao), and grind fine. Regardless of how long the condition has persisted, if nebulae membranes grow inside the eye causing gradual dimness and blurred distance vision, as long as the pupil is not broken or scattered, it can be cured. Apply about two rice grains of powder to the eye each time.
Another prescription, treating internal and external cataracts.
Atractylodis Rhizoma (Cangzhu) 4 liang. Soak in rice water for seven days, changing water daily. Scrape off the black skin, cut finely. Add one liang of Green Salt (Qingyan), stir-fry together until yellow. Remove and discard the salt. Ephedrae Herba (Muzei) 2 liang. Soak in urine from an uncircumcised boy overnight, rinse with water, dry by baking. Pound together into powder. Take 1 qian bi mixed with food and vegetables at any time. Very effective.
Jingyan Houfang, treating dim vision due to deficiency and exhaustion.
Collect Vitex trifolia flowers (Manjinghua) in March, dry in shade, grind to powder. Mix with well water and take 2 qian bi on an empty stomach. Long-term use promotes longevity and allows reading at night.
Waitai Miyao, treating eye nebulae and caruncles/polyps.
Use the whitest Alum (Fanshi). Place a grain-sized amount on the nebula or polyp. Cold tears will flow; wipe with cotton. Continue until foul discharge ceases. The disease decreases daily, the nebula thins and disappears, leading to recovery. Only true, pure white Alum should be used.
Another Liver-Nourishing Powder, treating thirty years of blindness.
Tribuli Fructus (Jili Zi), collected on the seventh day of the seventh lunar month, dried in shade, pounded into powder. Take one fang cun bi with water after meals.
Another treatment for blindness.
One pig gallbladder. Simmer gently over low heat. Form pills the size of a millet grain. Insert into the eye. Wait for the time it takes to eat a meal. Good.
Another prescription, treating heavy nebulae.
Dry the white membrane of a pig gallbladder in the sun. Shape into small ropes the thickness of a hairpin shaft. Burn to ash. While cool, apply the ash to the nebula. Three to five applications will cure it.
Another prescription, for lightening the body, boosting Qi, and brightening eyes.
Brassica rapa seed (Wujingzi) one sheng. Boil in nine sheng of water until the liquid is exhausted. Dry in the sun. Repeat this process three times. Grind into powder. Take one fang cun bi with water, three times daily.
Doumen Fang, treating fire eyes.
Burn Mugwort (Ai) until smoke rises. Cover with a bowl. When soot accumulates on the bowl, remove it. Dissolve the soot in warm water and wash the fire eyes. Immediate cure. Adding Coptidis Rhizoma (Huanglian) is excellent.
Guangli Fang, treating eye trauma with polyp protrusion.
Seven raw Almond kernels (Xingren). Peel, chew finely, spit into the palm while still warm. Wrap the tip of a tendon/muscle fiber in cotton, dip into the mixture, and apply to the polyp. Four or five applications will cure it.
Yaoxing Lun states.
On an empty stomach, brush teeth with salt. Spit into water after a short while. Wash the eyes with this water. Allows seeing small characters at night. Good.
Gu Han's Sister-in-Law Lost Sight.
Gu Han served medicine and food to his sister-in-law without wearing a hat or eating himself. His sister-in-law suffered from eye disease requiring Snake Gallbladder (Ranshe Dan). Gu Han sought it everywhere but could not find it. A young boy gave Gu Han a box. Upon opening, it contained Snake Gallbladder.
The boy left the door and transformed into a blue bird, flying away. The sister-in-law's eyes were subsequently cured.