眼目一症。古有五轮八廓及七十二症之辨。其实不足凭也业是科者。庸妄固无论已。而
高明之士。于实症。则曰风曰火。于虚症。则曰肝血少曰肾水衰。言之亲切有味。而施治则
毫无少效。且以增病。余历数交游。凡目痛者。无不因医而致瞽。即有一二幸免者。原为轻
浅之病。即不服药亦愈。于医固无与也。盖此症除风火赤肿外障等症。外而一切目视无光及
昏黑倦视等症。皆为阳虚。心肺为上焦之阳。心属火。火能烛物。肺属金。金能鉴物。二脏
之阳不宣则火不能烛。金不能鉴矣医者不知。以补血之药滋肝。以补水之药滋肾。下焦之阴
愈盛。则上焦之阳愈虚。且令下焦阴气。上加于天。白昼如夜。爝火有光。阴云四合。龙雷
飞腾。原欲滋阴以降火。其实滋阴以助火。火盛则遂增出赤肿红丝 肉羞明诸火象。渐成废
疾矣。予非专业此道。不敢多言。请向瞽者而询其所服何药。所点何药。便得前车之鉴。今
于眼科所未载外。搜出数方。以救逐流之弊。
四君子汤。（一。加肉苁蓉川椒菟丝为丸。治虚寒症。）豆腐一块。（中挖一空。
入朴硝一二钱。仍用豆腐盖上蒸出水即以此水洗目效。治实热症。）
桂附地黄丸（十五）当归补血汤。加鹿茸三钱。（六）磁珠丸。（二十六）还少丹。以菊
花汤
送下。（十六）初起翳障。不可遽用点药。及一切洗药。盖目不染尘。药汁入目。亦见羞涩。
唯用洁净开水。以洁净茶盏盛之。用洁净本色绢片。乘热淋洗。洗后水混浊。换水再洗。洗
至水清无垢方止。如此数次即愈。水内并不用药。名天然水。水必煎沸者。以热能散风。水
能制火也。
眼目这一病症，古代有五轮、八廓以及七十二种证候的辨析。其实这些理论并不可靠。从事这一科治疗的医生中，庸医妄为自不必说，而那些自以为高明的人士，对于实证，便说是风邪或火邪；对于虚证，便说是肝血不足或肾水衰退。他们说得亲切有味，但施治却毫无效果，反而加重病情。我观察过许多交往的朋友，凡是眼睛疼痛的，没有不是因为就医而导致失明的。即使有一两个侥幸免遭此祸的，原本也是轻浅的小病，即便不服药也会痊愈，这与医生的治疗无关。
大概这种病症，除了风火引起的赤肿、外障等症之外，其余一切视力无光、昏黑、视物疲倦等症状，都属于阳虚。心肺位于上焦，心属火，火能照亮物体；肺属金，金能映照物体。如果这两脏的阳气不能宣通，那么火就不能照明，金就不能映照了。医生们不懂这个道理，用补血药来滋养肝脏，用水药来滋润肾脏，导致下焦的阴气更加旺盛，上焦的阳气更加虚弱。并且让下焦的阴气上犯于天（头部），使得白昼如同黑夜。就像微弱的火光，四周阴云密布，龙雷之火飞腾。本来是想通过滋阴来降火，实际上是滋阴以助长火势。火势旺盛，于是又增加了赤肿、红丝、畏光羞明等各种火象，逐渐形成废疾。
我不是专门从事眼科的，不敢多言。请问那些失明的人，他们服用的是什么药，点的是什么药，就可以得到前车之鉴。现在在眼科书籍未记载的内容之外，搜集出几个方子，以纠正流弊。
四君子汤。（一方：加入肉苁蓉、川椒、菟丝子制成丸剂，治疗虚寒症。）豆腐一块。（中间挖空，放入朴硝一两到二钱，仍用豆腐盖住蒸出汁液，就用这个汁液洗眼睛，有效，治疗实热症。）
桂附地黄丸（十五）、当归补血汤加鹿茸三钱（六）、磁珠丸（二十六）、还少丹，用菊花汤送服（十六）。初起翳障时，不可急于使用点眼药及一切洗眼药。因为眼睛不染尘埃，药汁进入眼中，也会感到羞涩不适。只用洁净的开水，盛在洁净的茶盏里，用洁净的本色绢片，趁热淋洗。洗后水变浑浊，换水再洗，直到水清无污垢为止。如此数次即可痊愈。水中并不用药，称为“天然水”。水必须煮沸，是因为热能散风，水能制火。
Ocular disorders have historically been differentiated according to the Five Wheels (Wulun), Eight Palaces (Bakuo), and seventy-two syndromes. In reality, these classifications are unreliable. Among practitioners in this field, quacks act recklessly, which goes without saying. Even those considered highly skilled often attribute excess syndromes to Wind or Fire, and deficiency syndromes to Liver Blood insufficiency or Kidney Water decline. While their explanations sound profound and plausible, their treatments yield no effect and often exacerbate the condition. I have observed many acquaintances; all who suffered from eye pain eventually lost their sight due to medical intervention. The few who fortunately escaped were suffering from mild conditions that would have resolved spontaneously even without medication, so credit for their recovery should not be attributed to physicians.
Generally, apart from conditions such as redness, swelling, and external obstructions caused by Wind and Fire, all other symptoms involving loss of visual clarity, darkness, and fatigue in vision belong to Yang Deficiency. The Heart and Lungs reside in the Upper Jiao. The Heart belongs to Fire, which illuminates objects; the Lung belongs to Metal, which reflects objects. If the Yang Qi of these two organs fails to circulate freely, Fire cannot illuminate, and Metal cannot reflect. Physicians, unaware of this principle, use blood-nourishing herbs to tonify the Liver and water-moistening herbs to nourish the Kidney. This causes Yin in the Lower Jiao to become excessive, further depleting Yang in the Upper Jiao. Moreover, it allows Yin Qi from the Lower Jiao to ascend to the Head (Heaven), making daytime appear like night. It is akin to a flickering candle obscured by dark clouds, with Dragon and Thunder Fire soaring upward. Although the intention was to subdue Fire by nourishing Yin, this approach actually aids Fire. Excessive Fire leads to additional symptoms such as redness, swelling, blood vessels, and photophobia, gradually resulting in permanent disability.
I am not a specialist in ophthalmology and dare not speak at length. However, by asking those who have lost their sight what medicines they ingested and what drops they used, one can learn from past mistakes. Here, beyond what is recorded in standard ophthalmological texts, I present several prescriptions to correct these prevalent errors.
Sijunzi Tang (Four Gentlemen Decoction). [Formula 1: Add Cistanche Herba (Roucongrong), Zanthoxylum Pericarpium (Chuanjiao), and Cuscuta Semen (Tusizi) to form pills; treats Deficient-Cold syndromes.] Tofu, one piece. [Hollow out the center, insert Natrii Sulfas (Puxiao) 3–6 g, cover again with tofu, steam until liquid extracts, and use this liquid to wash the eyes; effective for Excess-Heat syndromes.]
Guifu Dihuang Wan (Cinnamon and Aconite Rehmannia Pill) (15); Danggui Buxue Tang (Dangui Tonifies the Blood Decoction) with Antler Cornu Cervi Pantotrichum (Lurong) 9 g added (6); Cizhu Wan (Magnetite Pearl Pill) (26); Hushao Dan (Preserve Vitality Pill), taken with Chrysanthemi Flos (Juhua) decoction as a vehicle (16). In the early stages of corneal opacity (Yi Zhang), do not hastily apply eye drops or any washing solutions. Since the eye does not naturally accumulate dust, medicinal fluids entering the eye may cause discomfort and aversion. Instead, use clean boiled water held in a clean teacup. Soak a clean, plain-colored silk cloth in the hot water and gently compress/wash the eyes. When the water becomes turbid, replace it and continue washing until the water remains clear and free of debris. Repeat this process several times until healed. No medicine is added to the water; this is called "Natural Water." The water must be boiled because heat disperses Wind, and water controls Fire.