2014-06: Investigation of the refractive properties of healthy human eyes and eyes of cataract surgery patients.
In cataract surgery, the power of the intraocular lens (IOL) is predicted based on biometric measurements of the eye. Current methods for determining IOL power in cataract surgery result in 45% of patients having an absolute refractive error greater than 0.5 diopter (D) after surgery. With improvements in the accuracy of biometric measurements, raytracing algorithms to determine IOL power has the potential to improve refractive outcomes after surgery. As the refractive properties of the pseudophakic eye are not confounded by unknown optical characteristics of the natural lens, the correlation between biometric and manual refractive measurements is supposed to be optimal. It will be evaluated whether this correlation can be further augmented by including the posterior corneal geometry measured with Cassini Corneal Shape Analyser. This is an extension of project 2010-28.