According to the specification, there are provided an eye visualisation system and a computer implemented method performed in an eye visualisation system for determining refractive characteristics of an eye, the system comprising a display and an analyzer comprising memory and a processor configured to execute optical analytic software and optical ray tracing software, and the method comprising: receiving, by the analyzer, (Optical Coherence Tomographic) OCT image data of an imaged region of the eye； receiving, by the analyzer, refractive mapping data of the imaged region； registering, by the processor, the OCT image data and the refractive mapping data； combining, by the processor, the OCT image data and refractive mapping data； and executing, by the processor, optical ray tracing software to determine the refractive characteristics of the eye based on the combined OCT image data and refractive mapping data； and displaying biometric information indicating the determined refractive characteristics of the eye.
