Unilateral pigmented posterior lenticonus with retinochoroidal coloboma: a case report

Posterior lenticonus is a rare congenital anomaly of the crystalline lens characterized by the conical herniation of the posterior lenticular surface with or without cortex herniation into the anterior vitreous. It is usually unilateral and axial; bilateral cases are usually familial and have syndromic associations. The irregular lenticular surface produces high myopia and irregular astigmatism producing optical distortion and hence deprivation amblyopia. We report a case of a 13-year-old girl with a unilateral pigmented posterior lenticonus associated with a retinochoridal coloboma with deprivation amblyopia.