Vitreous detachment refers to post vitreous detachment, which is an aging phenomenon that occurs gradually due to ageing. High myopia and overuse of eyes can promote post vitreous detachment. Posterior vitreous detachment is mostly due to ageing, vitreous body liquefaction, deformation, vitreous body’s posterior border membrane detached from the retina caused by the patient may appear in front of the eye black shadows fluttering, flash in front of the eyes and other uncomfortable symptoms, the patient can comply with the doctor’s instructions to use the aminiodarone peptide eye drops, lecithin complex iodine and other drugs for treatment to alleviate the discomfort of the eye. High myopia and overuse of eyes can promote the emergence of posterior vitreous detachment. If the vitreous body pulls on the retina, resulting in retinal detachment, patients may experience frequent flashes of light, vision loss and other uncomfortable symptoms, and patients can have surgery to reset the retina. It is recommended that patients with obvious symptoms of posterior vitreous detachment consult a doctor to evaluate their condition and follow the doctor’s instructions for treatment to avoid delaying their condition.