The invention discloses a medicament for improving eyesight. In the medicament, szechuan tangshen root, 
astragalus, large-headed atractylodes, Chinese angelica, rehmanniae vaporata, red paneoy root, rehmanniae praeparatum, 
gardenia fruit, medlar, 
eucommia bark, south dodder seed, raspberry, root of red-rooted 
salvia, notoginseng root, pale butterflybush flower, blackend swallowwort root, 
fish poison yarn and chrysanthemum are ground into 200-mesh 
powder, and are mixed uniformly, sterilized and packaged, wherein each bag contains 5 grams of medicament. The medicament is mainly used for treating patients who suffer from 
blurred vision caused by symptoms such as deficiency in 
kidney and yang, deficiency in blood and qi, 
diabetes mellitus, 
retinopathy, fundus hemorrhage, 
vitreous opacity, 
glaucoma or 
optic nerve pathological changes and the like, and 50 patients who suffer from the 
blurred vision are selected in the 
outpatient service of a hospital randomly to take the medicament. In the administration method and dosage, adults take twice every day, and takes 5 grams every time; for the children, the dosage is reduced by half; and 20 days is one treatment course, the total 
cure rate is 69 percent, the total 
cure rate of two treatment courses is 86.3, and the 
cure rate of three treatment course is 97.2 percent.