上头含在下牙外，紧接舌尖，下头入药水内二、三指，不可遽然深了。周遭浅吹一、二十口，再深吹
四、五口，使药气上行。喘气只开上唇，管子不离下唇，缓急浅深得法，病者吹五、六次即知，盖不可以
言传也。
《秘诀》云，自寅至午，点数遍云云，极明。因治少年公子，不如法守静，从权卧后点之，遍数如
《秘诀》所云，俱三更前点完，明早退的翳极多。《秘诀》云，过午不点，今竟卧后点之，治好多人。《秘诀》
云，三七二十一日云翳全退，今竟数月方退净吹净。内障服补脑还睛丸，觉有力量，仍且点且歇。
如退的光明，神光不外射，又服滋肾明目丸。
《秘诀》至还睛丸尽矣，滋肾明目丸乃覆万王先生收功方。早服滋肾明目丸，早饭后服补脑还睛丸，
二方兼服完，再服地黄明目等药，无不效验。
大约内障不除，服地黄明目等药，反助火邪上升，云翳日增，补之不可也。
服寒凉清火之剂，又伤脾胃气血，泄之不可也。
所以然者，肝、肺二经，肾经之道路也，道路有内障阻塞，补益之药从何进去？今吹去肝、肺上障膜，
肾经道路孔窍已开，任何补药，俱由肝肺而入于肾经，补足肾水，是以双目光明如童也。眼科隐窍正在乎此。
白菊花（三两） 川芎（五钱） 白术土炒（八钱） 草决明（炒，五钱） 人参（三钱） 陈皮（四钱）
栀仁（炒，八钱） 肉苁蓉（酒洗去鳞甲，八钱） 黄柏（盐水炒，一两） 知母（盐水炒，一两） 木贼（去节，
一两） 茺蔚子（炒，五钱） 枸杞（酒洗炙干，三两）
蜜丸桐子大，每一钱只丸十丸，晒干，空心淡盐汤下三钱。
《秘诀》冲吹法，原是治少年、中年气血壮盛者。至于虚弱老年，不敢轻用；就是少年、中年不健壮者，
先补后用此法。
气血虚者，补其气血；脾胃弱者，养其脾胃；真阴亏者，滋其肾水。筑基之法，断不可少。若吹冲一
半，云翳退尽，稍虚弱者，不必再吹。如虚弱人，把内障勉强去净，恐伤肾经，有青盲之患，慎之慎之！
将苇筒的上端含在上下牙齿之外，紧贴舌尖下方；下端浸入药水中二至三指深，不可突然插得太深。先在周围浅层吹气一二十口，再深入吹四到五口，使药气向上运行。呼吸时只张开上唇，管子不离开下唇，吹气的缓急、深浅要合乎法度，患者吹五六次就能感知效果，这其中的微妙之处难以用言语完全传达。
《眼科秘诀》中说，从寅时到午时，可以多次点眼，道理非常明白。我曾治疗一位少年公子，因他不遵守静养之法，便权宜之计在他卧床后点眼，遍数按照《秘诀》所说，都在三更前完成，第二天早上退去的翳膜非常多。《秘诀》说午后不宜点眼，我竟在卧后点眼，治好了许多人。《秘诀》说三七二十一天云翳全退，如今竟然数月才完全退净吹净。对于内障，服用补脑还睛丸，感觉有疗效，便继续点眼并间歇服药。如果视力恢复光明，神光不外泄，再服用滋肾明目丸。
《秘诀》关于还睛丸的内容到此结束，滋肾明目丸是万王先生用于收功的方剂。早晨服用滋肾明目丸，早饭后服用补脑还睛丸，两个方子兼服完毕后，再服用地黄明目等药物，没有不见效的。
大致而言，如果内障不除，服用地黄明目等药，反而助长火邪上升，导致云翳日益增加，这是不可行的滋补。服用寒凉清火的药剂，又会损伤脾胃气血，这是不可行的泻法。之所以如此，是因为肝、肺二经是通往肾经的道路，道路被内障阻塞，补益的药物从何进入？现在通过吹法去除肝、肺上的障膜，肾经的道路孔窍已经打开，任何补药都能经由肝肺进入肾经，补足肾水，因此双眼目光明亮如孩童一般。眼科的隐秘关键正在于此。
白菊花（三两） 川芎（五钱） 白术（土炒，八钱） 草决明（炒，五钱） 人参（三钱） 陈皮（四钱） 栀仁（炒，八钱） 肉苁蓉（酒洗去鳞甲，八钱） 黄柏（盐水炒，一两） 知母（盐水炒，一两） 木贼（去节，一两） 茺蔚子（炒，五钱） 枸杞（酒洗炙干，三两）
制成蜜丸，大小如梧桐子，每钱药粉制十丸，晒干，空腹用淡盐汤送服三钱。
《秘诀》中的冲吹法，原本是治疗少年、中年气血壮盛者的方法。至于虚弱老年人，不敢轻易使用；即使是少年、中年但不健壮者，也要先补益后再用此法。
气血虚者，补其气血；脾胃弱者，调养其脾胃；真阴亏者，滋补肾水。筑基的方法，绝对不可少。如果吹冲一半，云翳退尽，身体稍虚弱者，不必再吹。如果是虚弱之人，强行将内障去净，恐怕损伤肾经，导致青盲（一种视力严重减退甚至失明的病症）的祸患，务必谨慎！
The upper end of the reed tube is held outside the lower teeth, tightly adjacent to the tip of the tongue; the lower end is immersed in the medicinal liquid two to three finger-widths deep, and should not be inserted suddenly too deeply. First, blow gently around the periphery for ten to twenty breaths, then blow deeper for four or five breaths, allowing the medicinal qi to ascend. When breathing, only open the upper lip, keeping the tube against the lower lip. The speed, urgency, depth, and shallowness of blowing must follow proper technique. The patient will perceive the effect after five or six blows; this subtlety cannot be fully conveyed by words.
*The Ophthalmic Secret Manual* states that from Yin hour to Wu hour, eye drops can be applied multiple times, which is very clear. I once treated a young nobleman who did not observe strict quietude. As a temporary measure, I applied eye drops while he was lying down, following the number of applications specified in *The Secret Manual*, all completed before the third watch (midnight). The next morning, a significant amount of nebula had receded. Although *The Secret Manual* advises against application after noon, I applied it while lying down and cured many patients. *The Secret Manual* states that cloud-like nebula will completely recede in twenty-one days (three sevens); however, in my practice, it took several months to completely clear the nebula through blowing. For internal cataracts, taking Bu Nao Huan Jing Wan (Brain-Nourishing Eye-Clarifying Pill) felt effective, so I continued with eye drops and intermittent medication. If vision clears and the divine light does not leak outward, then take Zi Shen Ming Mu Wan (Kidney-Nourishing Eye-Brightening Pill).
The content regarding Huan Jing Wan in *The Secret Manual* ends here. Zi Shen Ming Mu Wan (Kidney-Nourishing Eye-Brightening Pill) is the concluding formula collected by Master Wang Wan. Take Zi Shen Ming Mu Wan in the morning, and Bu Nao Huan Jing Wan (Brain-Nourishing Eye-Clarifying Pill) after breakfast. After completing both formulas, take Di Huang Ming Mu (Rehmannia Eye-Brightening) and other medicines. There is no case where these do not prove effective.
Generally speaking, if internal cataracts are not removed, taking Di Huang Ming Mu (Rehmannia Eye-Brightening) and similar tonics will instead aid the rise of fire pathogenic factors, causing the nebula to increase daily; thus, tonification alone is inadvisable. Taking cold and cool agents to clear fire damages the Qi and Blood of the Spleen and Stomach; thus, purgation alone is inadvisable. The reason for this is that the Liver and Lung meridians are the pathways to the Kidney meridian. If these pathways are blocked by internal cataracts, how can tonic medicines enter? Now, by using the blowing method to remove the obstructing membranes from the Liver and Lungs, the orifices and pathways of the Kidney meridian are opened. Any tonic medicine can then enter the Kidney meridian via the Liver and Lungs, sufficiently replenishing Kidney Water. Consequently, both eyes become bright as those of a child. The hidden key to ophthalmology lies precisely in this mechanism.
Bai Ju Hua (Chrysanthemi Flos, 3 liang), Chuan Xiong (Ligustici Chuanxiong Rhizoma, 5 qian), Bai Zhu (Atractylodis Macrocephalae Rhizoma, stir-fried with soil, 8 qian), Cao Jie Ming (Cassiae Semen, stir-fried, 5 qian), Ren Shen (Ginseng Radix et Rhizoma, 3 qian), Chen Pi (Citri Reticulatae Pericarpium, 4 qian), Zhi Ren (Gardeniae Fructus, stir-fried, 8 qian), Rou Cong Rong (Cistanches Herba, washed with wine to remove scales, 8 qian), Huang Bo (Phellodendri Cortex, stir-fried with salt water, 1 liang), Zhi Mu (Anemarrhenae Rhizoma, stir-fried with salt water, 1 liang), Mu Zei (Equiseti Herba, nodes removed, 1 liang), Chong Wei Zi (Leonuri Fructus, stir-fried, 5 qian), Gou Qi (Lycii Fructus, washed with wine and dried, 3 liang).
Make honey pills the size of tung tree seeds. Each qian of powder yields ten pills. Dry them in the sun. Take 3 qian on an empty stomach with light salt water.
The flushing/blowing method in *The Secret Manual* was originally intended for youths and middle-aged individuals with robust Qi and Blood. For frail elderly people, it should not be used lightly; even for youths and middle-aged individuals who are not robust, one must first tonify before applying this method.
For those with deficient Qi and Blood, tonify their Qi and Blood; for those with weak Spleen and Stomach, nourish their Spleen and Stomach; for those with deficiency of True Yin, nourish their Kidney Water. The method of building the foundation is absolutely indispensable. If the blowing/flushing is done halfway and the nebula has completely receded, and the person is slightly weak, there is no need to continue blowing. If a weak person forces the complete removal of internal cataracts, it may damage the Kidney meridian, leading to the risk of Qing Mang (a condition characterized by severe visual impairment or blindness). Exercise utmost caution!