Abstract
Accurate eye models representing the anatomic and optical behavior of the real human eye are essential for the design and development of implantable intraocular lenses (IOLs) for cataract surgery. The correct prediction of the IOL's dioptric power is of high importance, as a wrongly chosen IOL dioptric power outpaces every other known aberration in loss of visual acuity. An introduction into eye modeling is given encompassing biometric data acquisition, 4 modeling paradigms (population based-and personalized eye modeling, models for IOL power calculation and discrete, physical eye models) and the description of some modeling procedures. Finally, field tracing simulations of a trifocal diffractive IOL in different eye models (Navarro model, Liou-Brennan model and ISO eye model) are compared. It is concluded that the ISO eye model will have to be substituted by a more realistic model in cases where the addition value of a multifocal IOL is to be obtained correctly by measurements.
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