Posterior vitreous detachment (PVD) occurs when the vitreous—a gel-like fluid in the eye—detaches from the retina. This results in eye floaters and flashes of light that can be annoying but is usually ...

Some fractures involve both bones; others affect only one. The fracture itself may take place on the bulbous ends of the bones known as the malleolus, which include: Of these, the posterior malleolus ...