Seventy-four eyes underwent extracapsular cataract extraction with posterior chamber intraocular lens implantation for two years were followed up. The examination by keratometer and manifest refraction revealed 85.14% of the eyes (63 eyes) existing > or = 0.5Diopter (D) corneal astigmatism with average 1.78 +/- 1.41 D, predominantly with-the-rule (77.03%). The results demonstrated that corneal astigmatism induced by 10-0 monofilament nylon suture was not absent completely even 2 years later postoperatively, persistent corneal astigmatism could affect ultimate uncorrected visual acuity and spectacle cylinder was almost equal to the corneal astigmatism. It was suggested that some proper measures to control corneal astigmatism following posterior chamber intraocular lens implantation must be considered.