In medicine, Chorioretinitis is an inflammation of the choroid and retina of the eye. The symptoms are the presence of floating black spots and blurry vision. Chorioretinitis is often caused by a toxoplasmosis infection and mostly affects young children. It is treated with a combination of corticosteroids and antibiotics. Medicine is a branch of health science concerned with maintaining health and restoring it by treating disease. ... The choroid is a collection of blood vessels in the rear of the eye that oxygenate the retina; it is located beneath the sclera. ... Human eye cross-sectional view. ... Artists impression of some floaters (muscae volitantes), as apparently seen against the blue sky. ... In physiology, corticosteroids are a class of steroid hormones that are produced in the adrenal cortex. ... An antibiotic is a drug that kills or slows the growth of bacteria. ...