Remnants of the hyaloid vascular system Glial remnants posterior to lens 2016-03-14T07:10:02Z This anomaly, also known as Mittendorf dot, is a benign, nonprogressive recognizable lesion that does not cause visual impairment. However, it can resemble a pathological congenital or acquired cataract lesion which may enlarge and cause visual impairment. The dot appears as a black speck that ranges in size from the dot made by a sharp pencil point to the size of a poppy seed. It is usually well defined, although occasionally there may be irregular, fine lines radiating outward from the dot. UMLS:C1299892 SNOMEDCT_US:370483001 Mittendorf dot