Mingmu Di Huang Wan is useful for short-term myopia and can help some myopic patients to correct their vision and improve their eyesight. The efficacy of Mingmu Di Huang Wan is mainly to nourish the kidney, nourish the liver and brighten the eyes. In clinical practice it is more often applied to symptoms related to Yin deficiency of the liver and kidney, such as dryness of the eyes, photophobia, blurred vision, severe vision loss, and tearing in the wind. Mingmu Di Huang Wan is effective in adjusting eye fatigue caused by watching cell phones and TV. Mingmu Di Huang Wan cannot treat prolonged myopia, but is effective for short-term vision loss. This is because prolonged myopia means that the deficiency of the liver and kidneys has reached a certain level, which has been solidified and cannot be nourished and toned up by medication. However, short-term vision loss, especially myopia, can be improved through Mingmu Di Huang Wan by replenishing the liver and blood, benefiting the kidney and yin, together with eye exercises and food such as carrots and pig liver, which are very beneficial to improving vision.