此翳薄而实浓，形色浑如玛瑙。虽未损瞳神，根脚深深
蚀透。依旧，依旧，药石怎生能勾。
此症风轮生翳，半掩神光。或沿白睛交际得来，则能睹不昏。乍看在外，细看则显然在内，薄而圆缺不等。
其色碧或带黄黑，或微红，状如玛瑙之属。盖头风痛攻，凉药削伤津液，寒毒凝结所致，甚至两目俱有。并水轮
混浊而失明者，医减一二，亦是国手。
青盲不似暴盲奇，暴盲来速青盲迟。最怕龙钟神气夺，又嫌清瘦精血脱。与夫脾痿胆不充，青囊妙术医无功。
吁嗟乎！青盲斯人有疾谁知觉，孔子见之未必作。
此症目内外并无翳障，金井不大不小，俨与常人一般，只自不见。初起视斜视短，间有神膏绿与水轮黄色者。
其因有二∶一曰心肾不交。盖心者，神所舍也，宜静而安。肾者精所藏也，宜固而秘。不安不秘，是为不交。不
交则精神潜散，精散则销阴而视斜，视斜者，犹下弦之月向晦也。神散则销阳而视短，视短者，犹着花之灯未剔
也。精神俱散，阴阳两销，则营卫关格，目淹淹如长夜矣。一曰甲己不合。盖甲为胆，胆乃金相水质，澄之不清，
挠之不浊，己为脾，脾为后天黄庭，诸阴之首，万物之母。土木合德，生生不已。甲己不合，乙戊先伤。肝伤则
血不和，目不能辨五色，胃伤则五脏失资，不能运精归明于目。且胆寄旺于肝，肝有贼邪，胆汁自坏，故燥上炎
而睛绿。脾食气于胃，胃有壮头，则脾亦散气，故中寒、湿热上蒸而睛黄。睛黄、睛绿，甲己真色。真色已现，
真元索然。则元府出入之路被邪遏抑，不得发此灵明，目虽有，若无矣。此二因者，究竟皆得于七情
六欲，最不能治。有抱元守真，药饵无时无选，或稍痊可。如年形衰迈性气浮燥，治亦无济。
关格者，百病之关键，解见暴盲。元府者，河间谓十二经皆有之，乃神气出入升降之道路门户也。元府热郁，
则闭塞不通，五官四末，有时不用。由是言之，青盲即暴盲，经脉即元府，关格即闭塞，悬而似近，异而实同矣。
经脉即元府，说的是。然余更有妙解。盖经系手足三阴三阳之经，脉乃通五官四末之脉，元府则脉中流行，
不舍昼夜之气血。譬诸花木，根干，经也，枝叶，脉也，雨露滋荫，有如元府。根干伤，则枝叶萎；枝叶伤，则
花果落；一定之理也。又如人放纸鸢扶摇而上，直干霄汉，命脉在此一线。倏而风翮不用，乃线断耳。人与纸鸢
两不相妨，此症其近之。
这种翳障薄而实质浓重，颜色和形态完全像玛瑙一样。虽然还没有损伤瞳神，但根基深深蚀透。照这样下去，依旧如此，药物和针灸怎么能起作用呢。
这种病症是风轮（黑睛）上生出翳障，半遮住了神光。如果是从白睛与黑睛交界处发展而来，那么还能看清而不昏花。乍一看似乎在外层，细看则明显在内部，厚度不一且形状有圆有缺。其颜色呈碧色或带有黄黑色，或微红，形状如同玛瑙一类。这大概是由于头风痛攻，服用凉药削伤了津液，导致寒毒凝结所致，甚至两眼都有。如果同时伴有水轮（瞳孔/晶状体区域）混浊而失明的情况，医生能减少一两个症状，就算是国手名医了。
青盲不像暴盲那样奇特，暴盲发病迅速，青盲发病缓慢。最可怕的是年老体衰、神气被夺，又嫌弃形体清瘦、精血耗脱。以及脾痿胆虚不充盛的情况，即使有《青囊》那样的妙术也医无功效。唉！患有青盲的人，谁又能察觉呢？即使是孔子看见，也未必会采取行动（指无法治愈或忽视）。
这种病症眼睛内外都没有翳障，金井（瞳孔）不大不小，俨然和常人一般，只是自己看不见。初起时视物倾斜或视距短，偶尔有神膏（玻璃体）变绿和水轮变黄色的情况。
其原因有两个：一是心肾不交。心是神居住的处所，宜静而安；肾是精储藏的地方，宜固而秘。不安定不隐秘，这就是不交。不交则精神潜散，精散则消耗阴液而导致视斜，视斜就像下弦月向昏暗转化；神散则消耗阳气而导致视短，视短就像点着的灯未修剪灯芯一样昏暗。精神和阴阳都消散，营卫之气关格不通，眼睛就昏昏沉沉如长夜一般。二是甲己不合。甲对应胆，胆属于金相水质，澄清它不清，搅动它不浊；己对应脾，脾是后天的黄庭，诸阴之首，万物之母。土木合德，生生不息。甲己不合，乙（肝）戊（胃）先受伤。肝伤则血不和，眼睛不能辨别五色；胃伤则五脏失去资助，不能将精气输送到眼睛使其明亮。而且胆寄旺于肝，肝有贼邪，胆汁自然败坏，所以燥热上炎导致眼珠发绿。脾依赖胃的气，胃有壮实之邪，则脾也散气，所以中寒、湿热上蒸导致眼珠发黄。眼珠发黄、眼珠发绿，是甲己的真色显现。真色已现，真元枯竭。那么元府出入的路径被邪气遏制抑制，不能发出灵明，眼睛虽然有，却如同没有一样。这两个原因，归根结底都源于七情六欲，最难治疗。如果能抱元守真，药物随时选用，或许能稍微痊愈。如果年龄大、形体衰弱、性情浮躁，治疗也无济于事。
关格，是百病的关键，解释见暴盲篇。元府，刘河间认为十二经都有，是神气出入升降的道路门户。元府热郁，则闭塞不通，五官和四肢有时不能使用。由此而言，青盲即暴盲，经脉即元府，关格即闭塞，看似遥远实则相近，名称不同实质相同。说“经脉即元府”是对的。然而我还有更巧妙的解释。经是手足三阴三阳的经脉，脉是通达五官四肢的脉络，元府则是脉中昼夜不停流动的气血。好比花木，根干是经，枝叶是脉，雨露滋润有如元府。根干受伤，则枝叶枯萎；枝叶受伤，则花果掉落；这是确定的道理。又如人放纸鸢扶摇直上，直达云霄，命脉在于这一根线。忽然风翼不用力，那是线断了。人和纸鸢互不相妨，这个病症与此相近。
This nebula (corneal opacity) is thin yet dense in substance, its color and form resembling agate. Although the pupil spirit (Shen Guang) is not yet damaged, the root penetrates deeply. As it remains unchanged, how can medicine and acupuncture be effective?
This condition involves a nebula forming on the Wind Wheel (Black Cornea), half-covering the Spirit Light. If it arises from the junction of the White Sclera and the Black Cornea, vision may remain clear without blurring. At first glance, it appears superficial, but upon closer inspection, it is clearly internal, varying in thickness and shape (round or irregular). Its color may be azure, yellowish-black, or slightly red, resembling agate. This is likely caused by head wind pain attacking, where cooling medicines have depleted body fluids, leading to the condensation of cold toxins; it may even affect both eyes. If accompanied by turbidity of the Water Wheel (Pupil/Crystalline Lens area) resulting in blindness, a physician who can alleviate even one or two symptoms would be considered a master doctor.
Qingmang (Green Blindness) is not as sudden or peculiar as Baomang (Sudden Blindness); Baomang comes quickly, while Qingmang develops slowly. The most feared scenario is when an elderly person's vital spirit is seized, or when emaciation indicates the depletion of essence and blood. In cases of Spleen atrophy and Gallbladder deficiency, even miraculous arts like those in the *Qingnang* (ancient medical text) are ineffective. Alas! Who perceives the illness of one suffering from Qingmang? Even Confucius might not act upon seeing it.
In this condition, there are no opacities inside or outside the eye; the Golden Well (Pupil) is neither large nor small, appearing normal like that of a healthy person, yet the patient cannot see. Initially, there may be diplopia (seeing obliquely) or shortened visual range, occasionally with the Shen Gao (Vitreous Humor) turning green or the Water Wheel turning yellow.
There are two causes: First, Heart-Kidney non-interaction. The Heart is the residence of the Spirit, requiring stillness and peace; the Kidney stores Essence, requiring firmness and secrecy. Lack of peace and secrecy constitutes non-interaction. Non-interaction leads to the dissipation of spirit and essence. Dissipated essence consumes Yin, causing oblique vision (like the waning moon approaching darkness); dissipated spirit consumes Yang, causing shortened vision (like an untrimmed lamp wick dimming). When both spirit and Yin-Yang dissipate, Ying-Wei Qi becomes blocked (Guan Ge), and the eyes become dim as if in eternal night. Second, Jia-Ji non-compliance. Jia corresponds to the Gallbladder, which possesses Metal-like clarity and Water-like fluidity, remaining clear when settled and turbid only when disturbed. Ji corresponds to the Spleen, the Yellow Court of the post-heaven phase, head of all Yin, and mother of all things. Wood and Earth harmonizing ensures continuous generation. Jia-Ji non-compliance harms Yi (Liver) and Wu (Stomach) first. Liver damage disrupts Blood harmony, preventing the eyes from distinguishing five colors; Stomach damage deprives the Five Zang organs of nourishment, failing to transport essence to brighten the eyes. Since the Gallbladder thrives with the Liver, liver pathogens corrupt bile, causing dry heat to flare upward and turn the eyeball green. The Spleen relies on the Stomach's Qi; if the Stomach harbors robust pathogens, the Spleen disperses Qi, causing middle-cold and damp-heat to steam upward, turning the eyeball yellow. Green and yellow eyeballs represent the true colors of Jia and Ji. Once true colors appear, true Yuan (Original Qi) is exhausted. The pathways of the Yuan Fu (Micro-orifices) are blocked by pathogens, preventing spiritual brightness from emerging; though the eyes exist, they are as if absent. These two causes ultimately stem from the Seven Emotions and Six Desires, making them hardest to treat. Only through preserving Yuan and guarding Truth, with timely medication, might slight recovery occur. For the aged, frail, and irritable, treatment is futile.
Guan Ge (Obstruction and Rejection) is the key to all diseases, explained in the Baomang section. Yuan Fu (Micro-orifices), according to Liu Hejian, exist in all twelve meridians and serve as the gates for the entry and exit, ascent and descent of Shen Qi (Spiritual Energy). Heat stagnation in the Yuan Fu causes blockage, rendering the five sense organs and four limbs temporarily useless. Thus, Qingmang is essentially Baomang; meridians are Yuan Fu; Guan Ge is blockage. They seem distant but are close, different in name but identical in substance. Saying "Meridians are Yuan Fu" is correct. However, I offer a further interpretation. Jing (Meridians) refer to the six Yin and six Yang channels of the hands and feet; Mai (Collaterals/Vessels) connect the sense organs and extremities; Yuan Fu refers to the Qi and Blood flowing continuously within these vessels day and night. Like flowers and trees, roots and trunks are Jing, branches and leaves are Mai, and rain/dew nourishment resembles Yuan Fu. Damage to roots/trunks wilts branches/leaves; damage to branches/leaves causes flowers/fruits to fall—a fixed principle. Similarly, flying a kite soaring high depends on a single thread for its life force. If suddenly unable to fly, the thread has broken. Humans and kites do not interfere with each other; this condition is analogous.