As the vitreous gel pulls away from the retina it can remain tethered to the central part of the retina (i.e., macula) causing vitreomacular traction. This traction can frequently progress to a macular hole. When this occurs, patients will often notice a sudden decrease or distortion in vision and a blind spot in their central vision. Treatment involves vitrectomy surgery with membrane peeling and insertion of a gas bubble in the eye to close the macular hole.