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A 50 years old man presented with visual impairment two months after undergoing extracapsular cataract extraction with intra-ocular lens (IOL) implantation. The IOL is displaced to the anterior chamber superiorly. The iris is seen abnormally adherent to the leftover posterior capsule, restricting space in the posterior chamber and thus pushing IOL forwards into the anterior chamber. It is not uncommon to see posterior synechiae (adhesion of iris to the anterior surface of crystalline lens) in cases of acute anterior uveitis. But in the figure above, the human lens has been replaced by IOL and here iris is adhered not to the anterior surface of human lens but to the leftover posterior capsule of the human lens. It may be due to severe post cataract-surgery inflammation of the iris and ciliary body.

Muhammad Marwat. (2015) INTRA-OCULAR LENS DISPLACEMENT, Gomal Journal of Medical Sciences , Volume 13, Issue 1.
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