Strategies allowing for correction of presbyopia in pseudophakic patients

In general, there is currently a variety of solutions enabling the correction of presbyopia, however, the ideal would be the restoration of accommodation by mimicking properties of the young natural crystalline lens. Unfortunately, it has not yet been achieved despite the fact that a number of attempts to design accommodative IOL were made so far. Multifocal, mainly bifocal and also trifocal, intraocular lenses (IOL) of different designs are now the prevalent solution of cataract and presbyopia correction allowing simultaneous vision mainly at far and near distances. Due to some drawbacks inherent to multifocal IOL technology, alternative approaches have been developed including attempts to extend the IOL DoF by different means in order to achieve good vision at far and intermediate distances (and also acceptable vision at near). Different strategies can be used to extend the DoF, e.g. multifocal IOLs with very low addition(s) and/or IOL with a controlled amount of some aberrations. The main goal of this project is to theoretically and experimentally investigate the impact of these strategies and/or their combinations on DoF and retinal image quality.

Supervisor: Radim Chmelík