Vitreous detachment, mostly referred to as posterior vitreous detachment, is a structural change that cannot usually be cured, but usually does not require specific treatment either. The vitreous humor inside the human eye is subject to degenerative changes such as liquefaction and clouding with age, and eventually separates from the retina, known as posterior vitreous detachment. The detached vitreous body can no longer be attached to the retina, and therefore is generally not curable. Posterior vitreous detachment generally does not significantly affect the patient’s vision, the patient may appear in front of the eye flashing sensation and other uncomfortable symptoms, usually do not need special, the patient can go to the hospital for regular checkups. Patients with posterior vitreous detachment should pay attention to eye hygiene, eye time should not be too long, and do not do strenuous exercise, but also to avoid emotional situations, in order to protect the eyes. It is recommended that patients with vision loss should consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.