Fig. 74. Partial dislocation (subluxation) of the lens. A. The lens remains in the posterior chamber but is in an aboral position. The zonular support (arrow) is at least partially compromised. The attachment of the vitreous to the lens may remain strong. B. A histologic example of a lens dislocated into the anterior chamber. Pupillary block has occurred because of the lens position, and secondary peripheral anterior synechiae have formed because of the pupillary block. (Hematoxylin-eosin stain; × 6.)