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Vienna 2018 Delegate Registration Programme Exhibition Virtual Exhibition Satellites 2018 Survey


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Changes in angle kappa after diffractive trifocal intraocular lens implantation

Poster Details

First Author: N.Garzón SPAIN

Co Author(s):    M. Garcia-Montero   E. Lopez-Artero   C. Albarran-Diego   R. Perez-Cambrodi   I. Illarramendi   F. Poyales     

Abstract Details


To evaluate angle kappa changes following the implantation of a diffractive trifocal intraocular lens


IOA Madrid Innova Ocular, Madrid, Spain


The study involved 58 patients undergoing symmetric bilateral IOL implantation, although only the participants’ right eye was included in the study. The implanted lens was a hydrophilic apodized trifocal IOL (POD F, PhysIOL, Belgium). The study’s primary outcome variable was angle kappa variation. A questionnaire about far vision, halos, and the overall level of satisfaction was completed by the participants at the 3-month follow-up visit to know if there was a correlation between kappa post-op angle and patient satisfaction


There was a statistically significant difference between pre-op and post-op angle kappa values (p = 0.034). Moreover, the postop-vs.-preop angle kappa differences were strongly correlated with preoperative angle kappa (p<0.001), spherical equivalent (p=0.001), axial length (p=0.004) and anterior chamber depth (p<0.001). The correlation between the questionnaire’s resulting score and the rest of the variables didn´t show any statistically significant correlations, except for the pair “level of satisfaction with far vision“ question and the postoperative UCVA value


No correlation was found between halos and either preoperative or postoperative angle kappa. However, we observed that angle kappa itself does change after diffractive trifocal IOL implantation and it is correlated with its preoperative value

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