[Gonioscopic observation after posterior chamber intraocular lens implantation].

6 months after senile extra-capsular cataract extraction and posterior chamber intraocular lens (IOL) implantation, Goldmann gonioscopy was performed on 30 eyes having undertaken the surgery. Peripheral anterior synechiae (PAS) were found in 17 eyes (56%). PAS overlying the positions of 20 lens haptics were observed in 15 eyes. It is easier to develop PAS in eyes with vertically fixed haptics than in eyes with horizontally fixed ones. The causes and the consequences of PAS were discussed. It is suggested that during the follow-up, routine gonioscopic observation after posterior chamber IOL implantation be necessary.