| 摘要 |
The present invention relates to a method for the preoperative selection of an intraocular lens in order to optimise the results of refractive surgery on the eye. In the method according to the invention, on the basis of an eye model comprising the individual biometric parameters of the eye, potentially suitable IOLs are selected on the basis of their optical parameters such as optical power, asphericity and toricity, and the residual refraction of said potentially suitable IOLs is calculated using ray tracing. Various metrics, preferably retinal image metrics, are used to calculate the residual refraction and in order to improve the selection, at least one additional parameter is taken into consideration for the calculation, said calculation taking the postoperative effects of the selected IOL and/or of the surgical technique used into account. Although the proposed method only describes the preoperative selection of an IOL for a refractive lens exchange, in principle said method is also suitable for selecting artificial intraocular lenses that are also inserted into the anterior chamber (between the cornea and the iris) or into the posterior chamber (between the iris and the lens) of the eye. |
