The opacity of posterior capsule after the extracapsular extraction of the crystalline with implant of an artificial crystalline in the posterior chamber is a post-operatory complication which is meeting in 5.33% operated eyes with a subjective consequence which is a visual acuity diminuation with the appearance of some bright bands in the visual field of the operated eyes especially in the night. The principal reasons was founded to be the patient age and the disposal of pseudophakia in the ciliary sulcus what is permitting the contact of the anterior chamber's remains with the posterior capsule which is the place of beginning to the epithelium proliferation.
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