Traumatic aniridia in a pseudophakic eye.

A case is presented that illustrates selective disinsertion and extrusion of iris tissue after blunt trauma without damage to the intraocular lens (IOL). This was an observational case report of a single patient treated as an inpatient using topical steroids and antiglaucoma drugs. Progress was monitored by tonometry and slitlamp examination. Total absence of iris tissue was discovered after resolution of hyphema with restoration of vision. Absence of iris tissue was confirmed on gonioscopy and fundoscopy. The IOL was found undisplaced and intact in the capsular bag, and visual function was restored. The insertion of foldable IOLs through self-sealing small-incision cataract sections confers protection to the globe in the face of blunt trauma in 2 ways. The self-sealing cataract section acts as a release valve during the compressive phase and allows extrusion of the disinserted iris tissue, whereas the flexible IOL absorbs the impact and prevents disruption of surrounding tissues.