Duane retraction syndrome has been reported in association with structural 
abnormalities of the eye, including epibulbar dermoid, keratoconus, iris 
dysplasia, heterochromia iridis, persistent fetal vasculature, cataract, 
choroidal coloboma, microphthalmia, and optic nerve dysplasia. A novel 
association, that of bilateral Duane syndrome with bilateral aniridia, is the 
subject of this report.