Trifocal Iols Implantation In Cataract Patients That Have Experienced Previous Laser Vision Correction : Eight Years Follow Up

To evaluate visual performances of trifocal IOLs AT LISA tri 839 MP and AT LISA tri toric 939MP trifocal IOLs (Carl Zeiss Meditec AG - Jena - Germany) in patient that experienced previous laser vision correction

Piovella Global Center for Ophthalmology, Monza, 20900, Monza e Brianza

Only eyes with regular cornea were included in this study: 44 eyes of 28 patients mean age: 56.57 ± 8.76 years. Preop SE was -0.91 ± 3,31 BCDVA 20/21.40 ± 3,18. Postop were measured: distance (5m) near (40cm) and intermediate (80 cm) VA, corneal topography and aberrometry, contrast sensitivity and defocus curve and quality of vision.Follow-up examinations were performed at day 1 2 7 30 90 180 360 and yearly.7 patients received trifocal IOLs implanted in the sulcus due to capsular bag deficiency

At one year BCDVA was 20/20,65 ± 2,51. SE was -0,20 ± 0,45.Residual astigmatism was 0,02 ± 0,42.83% of eyes after trifocal IOLs implantation achieved postop refractive results within ± 0.75 diopters

Trifocal IOLs provided good visual performances also with patients that experienced laser vision correction decades ago. To be selected for surgery biometry perfect outcomes are mandatory. Every IOL power calculation needed to be update with specific formula and managed by surgeon with specific experience and formula knowledge. It is necessary  to demonstrate no significant differences related the precise IOLs power also after multiple attempts. Sulcus implantation provide better outcomes if compared with monofocal IOLs.