The effect of Mingmu Yanggan Pill is to nourish yin and improve eyesight. It is used for liver and kidney weakness, lack of essence and blood, blue blindness, dim vision, dilated pupils, dry eyes, tears in the wind, and cataracts in the eyes. Mingmu Yangganwan prescription is derived from the earliest ophthalmology monograph "The Secret Ophthalmology Longmu Theory" during the Wanli period of the Ming Dynasty. It has a history of more than 400 years. There are a total of 20 medicines in the prescription. The "eye gold" fresh goat liver and Shu Dihuang are selected as the monarch medicine. At the same time, Fangfeng and Asarum are used as the meridian medicine. Obviously, it has become a must-have oral medication for people with overuse of eyes, dry eyes, and early cataracts, and it is suitable for a wide range of people.