An intravitreal (pronounced in tra VIT re al) injection is a procedure to place a medication directly into the space in the back of the eye called the vitreous cavity, which is filled with a jelly-like fluid called the vitreous humor gel.
The procedure is usually performed by a trained retina specialist in a medical office setting. When there are very high levels of VEGF (Vascular Endothelial Growth Factor) in the eye, it can cause blood vessels to swell and leak fluid and also begin the growth of abnormal blood vessels.
This can lead to retinal damage and the symptoms people experience. Complications following an eye injection are rare. In fact, the chance of having any complication following the injection of medicine into your eye is one in one thousand. A minor rare complication can be the presence of a small amount of bleeding visible in the white of your eye near the needle entry point. This usually clears within a week.