[Relation between postoperative refraction errors and decentration of the intraocular lens]

In a group of 51 patients the authors measured the position of the intraocular lens (the method was based on mathematical analysis of the Purkinje images position) and calculated the postoperative refractive error. The dependence of the postoperative refractive error on IOL position was analyzed and the results of the analysis were compared with the presumptions based on theoretical calculations. The results obtained from the measurement are very close to that assessed by the theoretical calculations. The IOL decentration in the eye causes the the shift of the postoperative refractive error towards myopia and it is probably the cause of the part of the postoperative refractive error.