The efficacy of lutein in patients with vitreous clouding is unclear, and it is generally thought to be ineffective for vitreous clouding. Lutein is a carotenoid, is the main component of photoreceptor pigments in the photoreceptor cells of the fundus, which can convert external light signals into electrical signals. Lutein is generally used to nourish the fundus, while patients with vitreous clouding are mostly due to the aging of the vitreous itself or the accumulation of blood in the vitreous, inflammation, etc., lutein can not alleviate the patient’s vitreous clouding state. Vitreous clouding caused by a variety of reasons, physiological vitreous clouding generally do not need special treatment, vitreous blood caused by clouding, the patient can follow the doctor’s instructions to use lecithin complex iodine and other drugs to promote the absorption of blood, the slow absorption of patients can be timely vitrectomy treatment to improve vision. It is recommended that patients with obvious symptoms of vitreous clouding should consult a doctor in time to evaluate their condition and follow the doctor’s instructions for treatment.