Posterior tibial tendonitis refers to inflammation of the posterior tibial tendon, which is located in the inner side of the ankle. This can lead to foot and ankle pain, as well as other issues.

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 ...

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