目有黑花，如飞蝉蝇者何故？答曰∶肾虚也。肾属水，水若枯，则肾虚。宜点虎液、青龙膏，服猪苓汤、补肾丸。
猪苓汤
五味子 熟地 猪苓 肉苁蓉（酒洗） 枸杞子 覆盆子
不用引，水煎服。
补肾丸（五十四问、六十六问各有补肾丸，均相同） 车前子（酒浸，一两） 石斛（去根，一两）
青盐（二钱） 磁石（ 醋淬七次，水飞，二钱） 沉香（五钱，另研） 菟丝子（酒煮打烂，二钱）
共为末，炼蜜为丸，梧桐子大，每服七十丸，空心盐汤送下。
目有迎风流泪者何故？答曰∶肾虚也。肝木生风，肾水枯不能滋木，木乃肾之子，故见风流泪也。宜点凤
麟羊脑玉，服地黄丸。
明目地黄丸（四十八问亦有地黄丸，其方不同，此即薛氏选方减去石斛者）
生地（一斤，酒浸） 熟地（一斤，酒浸九蒸） 防风（四两） 枳壳（去瓤麸，炒，四两） 川牛膝（去芦，
四两） 杏仁（去皮尖，二两）
共为末，炼蜜为丸，梧桐子大，每服五十丸。
目有赤筋扳睛者何故？答曰∶心火主血，肝木主筋。血侵于筋，肝心同源，相传于目，故曰血眼。多生扳睛，
宜服三黄汤，不退再服当归散，点珍珠膏。（珍珠膏疑即虎液等膏加珍珠琥珀之方）
三黄汤（以大黄易黄柏，即三黄丸方，见后五十二问）
大黄（二钱，酒炒） 黄芩（一钱五分） 黄连（二钱五分）
当归散
当归 白芷 羌活 甘草 栀子 牛蒡（炒）
共为末，滚水调服。
眼睛出现像飞动的蝉蝇一样的黑花，这是什么原因？回答说：这是肾虚所致。肾在五行中属水，如果肾水枯竭，就会导致肾虚。适宜使用虎液、青龙膏外点眼，内服猪苓汤、补肾丸。
猪苓汤
五味子 熟地黄 猪苓 肉苁蓉（用酒清洗） 枸杞子 覆盆子
不需要药引，用水煎煮后服用。
补肾丸（第五十四问、第六十六问中各有补肾丸，方剂均相同） 车前子（用酒浸泡，一两） 石斛（去除根部，一两）
青盐（二钱） 磁石（用醋淬炼七次，水飞处理，二钱） 沉香（五钱，单独研磨成粉） 菟丝子（用酒煮烂捣碎，二钱）
共同研成细末，用炼蜜制成丸药，大小如梧桐子，每次服用七十丸，空腹时用盐汤送服。
眼睛遇到风就流泪，这是什么原因？回答说：这是肾虚所致。肝木生风，肾水枯竭不能滋养肝木，因为肝木是肾水的子脏，所以见到风就会流泪。适宜使用凤麟羊脑玉外点眼，内服地黄丸。
明目地黄丸（第四十八问中也有地黄丸，但方剂不同，此方即薛氏选方减去石斛的版本）
生地黄（一斤，用酒浸泡） 熟地黄（一斤，用酒浸泡并九蒸九晒） 防风（四两） 枳壳（去除瓤和麸皮，炒制，四两） 川牛膝（去除芦头，四两） 杏仁（去皮尖，二两）
共同研成细末，用炼蜜制成丸药，大小如梧桐子，每次服用五十丸。
眼睛出现赤色筋脉牵拉黑睛，这是什么原因？回答说：心火主司血液，肝木主司筋脉。血液侵入筋脉，肝与心同源，病气相传至眼部，所以称为血眼。多伴有黑睛被牵拉的症状，适宜服用三黄汤，若症状不退再服用当归散，并点用珍珠膏。（珍珠膏怀疑是在虎液等眼膏基础上加入珍珠、琥珀的方剂）
What is the cause of black spots in the eyes resembling flying cicadas or flies? The answer is: Kidney deficiency (Kidney Xu). The Kidney belongs to Water; if Kidney Water withers, it results in Kidney deficiency. It is advisable to apply Huye (Tiger Liquid) and Qinglong Gao (Green Dragon Ointment) topically, and take Zhuling Tang (Polyporus Decoction) and Bushen Wan (Kidney-Nourishing Pill) orally.
Zhuling Tang (Polyporus Decoction)
Schisandrae Fructus (Wuweizi), Prepared Rehmanniae Radix (Shudi), Polyporus (Zhuling), Cistanche Herba (Roucongrong) [washed with wine], Lycii Fructus (Gouqizi), Rubi Fructus (Fupenzi)
No specific guide herb is needed; decoct in water and take orally.
Bushen Wan (Kidney-Nourishing Pill) (Note: Bushen Wan appears in Questions 54 and 66 with identical formulations.)
Plantaginis Semen (Cheqianzi) [soaked in wine, 1 liang], Dendrobii Caulis (Shihu) [remove roots, 1 liang]
Natrii Chloridum Viride (Qingyan, 2 qian), Magnetitum (Cishi) [quenched seven times in vinegar, washed with water, 2 qian], Aquilariae Lignum Resinatum (Chenxiang, 5 qian, separately ground), Cuscutae Semen (Tusizi) [boiled in wine until soft and mashed, 2 qian]
Grind all into fine powder, mix with refined honey to form pills the size of Sophora japonica seeds. Take 70 pills per dose, administered with salted water on an empty stomach.
What is the cause of tearing upon exposure to wind? The answer is: Kidney deficiency. Liver Wood generates wind; when Kidney Water withers and fails to nourish Liver Wood, and since Liver Wood is the "child" organ of Kidney Water, tearing occurs upon exposure to wind. It is advisable to apply Fenglin Yangnao Yu (Phoenix-Lamb Brain Jade) topically and take Dihuang Wan (Rehmannia Pill) orally.
Mingmu Dihuang Wan (Bright-Eye Rehmannia Pill) (Note: Question 48 also mentions Dihuang Wan, but the formula differs; this formula is based on Xue's selected prescription minus Dendrobii Caulis.)
Rehmanniae Radix (Shengdi, 1 jin, soaked in wine), Prepared Rehmanniae Radix (Shudi, 1 jin, soaked in wine and steamed nine times), Saposhnikoviae Radix (Fangfeng, 4 liang), Aurantii Fructus (Zhiqiao) [remove pulp and bran, stir-fried, 4 liang], Cyathulae Radix (Chuanniuxi) [remove rhizome, 4 liang], Armeniacae Semen Amarum (Xingren) [remove skin and tips, 2 liang]
Grind all into fine powder, mix with refined honey to form pills the size of Sophora japonica seeds. Take 50 pills per dose.
What is the cause of red vessels extending onto the cornea (black pupil)? The answer is: Heart Fire governs Blood, and Liver Wood governs sinews. When Blood invades the sinews, and due to the common source of Liver and Heart, the pathology transmits to the eye, hence termed "Blood Eye." This condition often involves the pulling of the cornea. It is advisable to take Sanhuang Tang (Three-Yellow Decoction); if symptoms persist, take Danggui San (Angelica Powder) again, and apply Zhenzhu Gao (Pearl Ointment). (Note: Zhenzhu Gao is suspected to be a formulation based on Huye or similar ointments supplemented with Pearl and Amber.)
Sanhuang Tang (Three-Yellow Decoction) (Note: By replacing Phellodendri Cortex with Rhei Radix, this becomes the Sanhuang Wan formula, see Question 52 below.)
Rhei Radix et Rhizoma (Dahuang, 2 qian, stir-fried with wine), Scutellariae Radix (Huangqin, 1.5 qian), Coptidis Rhizoma (Huanglian, 2.5 qian)
Danggui San (Angelica Powder)
Angelicae Sinensis Radix (Danggui), Angelicae Dahuricae Radix (Baizhi), Notopterygii Rhizoma et Radix (Qianghuo), Glycyrrhizae Radix et Rhizoma (Gancao), Gardeniae Fructus (Zhizi), Arctii Fructus (Niubangzi) [stir-fried]
Grind all into fine powder, mix with boiling water and take orally.