Fig. 15. Anomalous posterior vitreous detachment. Vitreous can remain attached to the macula even in the presence of posterior vitreous detachment. In such cases, vitreous can extrude through the premacular vitreous cortex and fibers can insert into the macula. B, C, and D are an artist's rendition of this phenomenon. A demonstrates actual vitreous extrusion into the retrocortical space in a postmortem human specimen (see Fig. 4D) (B and C adapted from Jaffe NS: The Vitreous in Clinical Ophthalmology. St. Louis, CV Mosby, 1969; D adapted from Jaffe NS: Vitreous traction at the posterior pole of the fundus due to alterations in the posterior vitreous. Trans Am Acad Ophthalmol Otolaryngol 71:642, 1967)