五行生克云金克木。肝属木，肺属金，木受金伤，
枯燥生火，肝上因生脂膜如豆腐皮，粘延缠扰不清。
热毒随肝之经络上升于目，而生红丝，自白睛而入黑
睛，睛上云翳如称星，如丝缕，如梅花，时长时退，
甚至遮蔽瞳人。
治法宜服发散、和解之药，清热退翳为妙。
合观二症，黑白珠上未生翳膜，肝、肺上先生翳
膜，如何钩割得？先点扫雾丹，次用《秘诀》吹冲法，
点赛宝丹（方见《秘诀》）。
目不因火则不病，是火为受病之源也。
云翳因火而生，退云翳又不可遽然清火。何也？
心火积久，白珠生云翳，肺经一团热血也；肺毒蕴深，
入肝经，乌珠生翳，肝经一团热血也。此时误用寒凉，
将热血冰住不得流通，经络阻塞，云翳赤丝死于眼
睛上，为不退之翳，俗名为冷翳是也。治法当相其虚
实，活血养血，发散清火，缓缓治之可也。夫云翳犹
之舟也，火犹之水也，舟以水来，亦以水去，若先彻
水，舟落泥中矣。云翳因火而生，还借火而退，火与
云翳一齐退，是良法也。点扫雾丹、至宝丹，亦用《秘
诀》吹冲法，点赛宝丹。
世之眼科，遇人眼症，无论虚实，辄用寒凉之剂，
久而不愈，又用补肾之药。以为肾水不足，火因上行，
宜补肾水。殊不知肾乃肝之母，补肾生肝之气，肝气
上冲，脑斗下堕，翳膜转生，为病更甚。往往治目用
滋肾明目丸，助火上升，正坐此弊。
五行生克理论中提到金克木。肝在五行中属木，肺属金，若木受到金的伤害，会导致干枯并产生内火，肝脏上部会生成类似豆腐皮的脂膜，粘连缠绕，难以清除。热毒顺着肝的经络上升到达眼睛，形成红血丝，从白睛（巩膜）进入黑睛（角膜），黑睛上出现云翳，形状像秤星、丝缕或梅花，时大时小，严重时甚至遮蔽瞳孔。治疗方法适宜服用具有发散和解作用的药物，以清热退翳为妙。
综合观察这两种症状，如果黑白珠上尚未生成翳膜，而肝、肺部位先生成了翳膜，如何能通过钩割手术去除呢？应当先点用扫雾丹，接着使用《秘诀》中的吹冲法，再点用赛宝丹（方剂见《秘诀》）。
眼睛不因火邪则不会生病，火是致病的根源。云翳因火而生，但消退云翳时不能立刻猛烈清火。为什么呢？心火积聚日久，会在白珠（巩膜）上生成云翳，这是肺经的一团热血；肺毒蕴藏深厚，侵入肝经，会在乌珠（黑睛/虹膜等深色部分）上生成翳，这是肝经的一团热血。此时若误用寒凉药物，会将热血冻结导致无法流通，经络阻塞，云翳和赤丝死在眼睛上，成为无法消退的翳障，俗称为冷翳。治疗方法应当根据虚实情况，采用活血养血、发散清火的方法，缓缓治疗即可。云翳就像船，火就像水，船因水而起，也因水而去，如果先把水抽干，船就会落在泥中。云翳因火而生，还要借助火的力量来消退，让火与云翳一齐消退，才是良法。点用扫雾丹、至宝丹，也使用《秘诀》中的吹冲法，点用赛宝丹。
世上的眼科医生，遇到眼症，无论虚实，往往使用寒凉药剂，久治不愈后，又改用补肾药物。认为肾水不足，火气因此上行，应该补肾水。却不知道肾是肝的母亲，补肾会滋生肝气，肝气上冲，导致脑斗下堕，翳膜反而再生，病情更加严重。往往治疗眼睛使用滋肾明目丸，助长火气上行，正是犯了这种弊病。
The theory of the Five Elements and mutual generation/restriction mentions that Metal restricts Wood. The Liver belongs to Wood, and the Lung belongs to Metal. If Wood is injured by Metal, it leads to dryness and generates internal Fire. A fatty membrane resembling tofu skin may form on the upper part of the Liver, adhering and tangling without clear resolution. Heat-toxin ascends along the meridians of the Liver to the eyes, generating red filaments (red blood vessels) that enter the Hei Jing (cornea) from the Bai Jing (sclera). Cloudy opacities (cloudy nebula) appear on the eye, resembling stars on a scale, silk threads, or plum blossoms; they vary in size over time, and in severe cases, even obscure the pupil. The treatment method should involve administering medicines with dispersing and harmonizing properties, with clearing heat and resolving opacities being ideal.
Observing these two conditions together: if no opacity has formed on the black and white parts of the eye, but an opacity has already formed in the Liver and Lung areas, how can it be removed by hooking or cutting? One should first apply Sao Wu Dan (Sweeping Fog Pill), then use the Chong Chong method from *Mi Jue* (Secret Manual), followed by applying Sai Bao Dan (Competing Treasure Pill) (formula see *Mi Jue*).
The eye does not become diseased without Fire; thus, Fire is the source of disease. Cloudy opacities are generated by Fire, yet one cannot abruptly clear Fire to eliminate them. Why? When Heart Fire accumulates for a long time, cloudy opacities form on the Bai Zhu (white part of the eye); this represents a mass of hot blood in the Lung meridian. When Lung toxin is deeply entrenched and invades the Liver meridian, opacities form on the Wu Zhu (dark part of the eye); this represents a mass of hot blood in the Liver meridian. At this time, mistakenly using cold and cool medicines will freeze the hot blood, preventing circulation, blocking the meridians, causing the cloudy opacities and red filaments to die in the eye, resulting in permanent opacities, commonly known as Cold Opacity (Leng Yi). The treatment method should assess deficiency and excess, employ methods to invigorate blood and nourish blood, disperse and clear Fire, and treat gradually. The cloudy opacity is like a boat, and Fire is like water; the boat rises due to water and also departs due to water. If the water is completely drained first, the boat will fall into the mud. Since cloudy opacities are generated by Fire, they must also rely on Fire to recede; allowing both Fire and the cloudy opacity to recede together is an excellent method. Apply Sao Wu Dan and Zhi Bao Dan, also using the Chong Chong method from *Mi Jue*, and apply Sai Bao Dan.
Ophthalmologists in the world, when encountering eye conditions, regardless of whether they are deficiency or excess, invariably use cold and cool formulas. When they fail to heal after a long time, they switch to kidney-nourishing medicines. They believe that Kidney Water is insufficient, causing Fire to ascend, and thus should tonify Kidney Water. However, they do not realize that the Kidney is the mother of the Liver; tonifying the Kidney generates Liver Qi. Liver Qi rushing upward causes "brain fighting" and downward prolapse, leading to the regeneration of membranes and worsening the condition. Often, treating eyes with Zi Shen Ming Mu Wan (Nourish Kidney Brighten Eye Pill) aids Fire in ascending, precisely falling into this pitfall.