Migration of a wooden foreign body into the lens: report of a case.

A penetrating ocular injury caused by a tree branch resulted in a small corneoscleral laceration that healed after primary repair. Post-traumatic inflammation persisted and a vitreous mass developed. The mass finally protruded through the pupil and touched the posterior cornea. Histologic examination of the enucleated eye showed that the lens had been replaced by a wooden foreign body that filled the pupillary space and was surrounded by lens capsule. No intact lens fibers remained.