Studies have shown that molybdenum is one of the essential trace elements to maintain human health, and it is also an important nutritional component of iris. Iris can adjust the pupil size to ensure clear vision. The sensitivity of pupil dilation and contraction is closely related to the integrity of iris. Trace element molybdenum is one of the material bases of chrysanthemum's eyesight improvement, and the nutritional mechanism of molybdenum to eyes is one of the mechanisms of chrysanthemum's eyesight improvement. Therefore, chamomile has the effect of nourishing optic nerve and retina, and has applied for a patent. Drinking chamomile regularly can effectively relieve various symptoms caused by eye fatigue, such as dry eyes, dry eyes and decreased vision. Moreover, chrysanthemum is picked before the first frost, which is flat and cold, and is suitable for long-term drinking.