Vitreous humor has light transmittance, and clouding of the vitreous humor can cause blurred vision. It is divided into two cases: 1, pathological: when exudates, metabolites or hemorrhage of various eye diseases are fused in the vitreous body, forming an opaque body, which causes turbidity; 2, physiological: aging, metabolite precipitation in the vitreous body is caused, which is a physiological phenomenon. It is a physiological phenomenon. Appropriate iodine supplementation or acupuncture, traditional Chinese medicine and other therapies to promote blood circulation and eliminate blood stasis can be used to achieve the effect of clouding; 3. Vitreous clouding caused by fatigue or overexertion of the eyes can be relieved by rest.