Vitreous turbidity is a common ophthalmic condition that occurs in all age groups and manifests itself as floating dotted or linear shadows in front of the eyes, which can occur continuously or occasionally. The vitreous itself has no blood vessels or nerves, and is nourished by the adjacent retinal choroid and atrial fluid, and is susceptible to peripheral tissues. Any factor that can cause metabolic changes, such as damage to the vitreous itself or impaired nutrient metabolism, can cause vitreous clouding. In the elderly, vitreous degeneration, retinal or uveal hemorrhage invading the vitreous, high myopia, ocular trauma, and intraocular foreign body retention are common causes. It can be treated with oral medications and eye drops. Usually, we need to pay attention to eye hygiene, such as reducing the use of computers and cell phones, paying attention to sleep, taking vitamin supplements and eating more fruits and vegetables.