Lutein is a kind of health care product, the specific time of taking it is recommended to be determined by a specialist according to the patient’s condition, and there is no definite time of taking it. Lutein has the health function of relieving visual fatigue and is suitable for people who are prone to visual fatigue. Lutein, need to be taken by a specialist doctor according to the patient’s specific situation and clear specific dose and frequency of taking, to avoid patients taking too much of the situation, affecting their health. In addition, lutein normal consumption has no obvious adverse reactions, but long-term overdose may cause liver and kidney toxicity and other adverse reactions. It is recommended that patients follow the doctor’s instructions to use lutein, do not use without authorization, to avoid causing adverse reactions.