Traumatic Lens Dislocation in an Eye with Anterior Megalophthalmos

Anterior megalophthalmos is a rare, bilateral, nonprogressive, hereditary, congenital disorder characterized by the enlargement of all anterior segment structures of the eye, with megalocornea, iris atrophy, and zonular abnormalities. We report a case of an 8-year-old male who presented to the emergency department with a history of visual loss after a blunt ocular trauma to the left eye. The patient presented with markedly enlarged corneas and deepened anterior chambers bilaterally. Best-corrected visual acuity (BCVA) was hand motion in the left eye. An additional examination revealed multiple anterior segment abnormalities, leading to the diagnosis of megalophthalmos and lens dislocation in the anterior chamber. The patient underwent a lensectomy and anterior vitrectomy in the left eye. At six months postoperatively, the BCVA was 20/200 in the left eye. Lens dislocation in patients with megalocornea is rare. Cataract surgery in these patients requires attention to the zonular abnormalities and lens enlargement, resulting in increased rates of intraoperative and postoperative complications. Ophthalmologists should be able to diagnose this rare disorder and manage the associations and complications.