OKULIX Raytracing Software

Abstract

AbstractThe raytracing software package OKULIX was initially developed for scientific purposes in the context of accommodating IOLs. Later it was extended to corneal laser surgery which is still available in the “corneal module” of OKULIX. The latest development was then the application to IOL calculation. One of the essential guidelines of the software development was to reduce universal applicability (unlike as in other commercially available raytracing software) in order to optimize it to the special situation of a human eye, i.e., concentration of the fovea as the only optical area of interest, and restriction to mostly four but in maximum six refracting surfaces. In addition, the collection of the manufacturer’s blue prints of the big majority of IOL models on the market was necessary, including continuous updates. In general, the result is an IOL calculation software that is based on physical rather than on statistical data to the highest possible extent, applicable to all kinds of eyes, even without knowing their history. Other than in most IOL formulas, missing information is not taken from Gullstrand’s but from Liou and Brennan’s eye model. The accuracy of OKULIX IOL calculations has been proven to be never systematically worse compared to other methods when the same measured input data are used.