There are differences between Dendrobium Mingmu Pill and Mingmu Di Huang Wan in terms of constituents, functions and indications, contraindications and precautions. 1. Ingredients: Dendrobium Meaningful Eye-opening Pill is mainly composed of more than 20 Chinese medicines such as Dendrobium, Cassia Seed, Rhizoma Dioscoreae, Fructus Lycii, Semen Cuscutae, Cistanches, Panax Ginseng, and Chinese yam etc., whereas Meaningful Eye-opening Pill is composed of twelve Chinese medicines such as Paeonia Lactiflora, Flos Chrysanthemi, Rehmanniae Glutinosa, Cornu Cervi Flesh, Mudanpi, Chinese yam, and Zedoary etc.. 2. Functions and Indications: Dendrobium Meibi Pill has the effects of nourishing the kidney and brightening the eyes, calming the liver and clearing away heat, and it is mainly used for treating night blindness and dimming the eyesight caused by the rise of deficiency fire and the deficiency of the liver and the kidney, unclear vision, painful drawback of internal obstruction, pupil dilatation, dizziness, and mental fatigue, and other diseases. Mingmu Di Huang Wan has the effects of brightening the eyes, nourishing the liver and nourishing the kidneys, and it can treat blurred vision, tearing in the wind, astringency of the eyes and photophobia caused by yin deficiency of the liver and kidneys (deficiency of yin fluid in the liver and kidneys). 3. Contraindications and precautions: Pregnant women should be cautious of using Dendrobium Mingmu Pill, avoid eating spicy food during the use of the drug, the drug contraindications and adverse reactions are not clear. The existence of the white of the eye congestion and redness, tearing and fear of light, eye boogers and other outbreaks of fire eye (that is, infectious conjunctivitis, also known as red eye), need to avoid the use of Dendrobium Pill, the adverse effects of the drug is not clear. Patients should not use the drug blindly, must be guided by a professional doctor.