VISUAL PERFORMANCE AFTER BILATERAL MICRO MONOVISION WITH EDOF LENS: DO WE REALLY NEED DIFFRACTIVE IOLS ANYMORE?

To evaluate visual acuity in all distances after binocular micro-monovision with Extended-debt of Focus intraocular Lenses (EDOFs).

Special Eye Hospital "Dr. Kozomara" Banja Luka, Bosnia-Herzegovina.

A prospective monocentric study includes patients that underwent bilateral same-day refractive lens exchange followed by implantation of EDOF lens in both eyes (Vivity®, Alcon Laboratories, Forth Worth, TX, USA). Inclusion criteria are patients older than 45 years of age with prescribed far, intermediate, and near vision correction. Exclusion criteria were patients younger than 45 years of age, and those without presbyopia or hypermetropia/myopia.  The preoperative examination included testing of uncorrected and best-spectacle corrected far, intermediate, and near vision, intraocular pressure measurement, pupil diameter, and slit lamp examination of anterior and posterior eye segments. Biometry was done using the Barrett II formula. The patients were followed one month postoperatively, and uncorrected distance, intermediate, and near visual acuities, lens position, and the presence of the posterior capsule opacification (PCO).

Fifteen patients (30 eyes) were included in the study. The mean preoperative UDVA was 0.44±0.32, UIVA 0.28±0.11, and UNVA 0.14±0.05, while BSCVA was 0.93±0.15, BSCIVA 1.00, and BSCNVA 0.94±0.13. Postoperatively, UDVA was 0.92±0.12, UIVA 1.00, and UNVA 0.84±0.16. The mean bilateral under-correction was -0.27±0.28, and the mean IOL power was +24.70±3.60. The mean pupil diameter was 2.86±0.41, while the IOP value was 16.60±2.22. There was no IOL dislocation, nor presence of the PCO. 

bilateral micro-monovision gives excellent postoperative vision results on all distances, followed by a slight decrease in far visual acuity and very satisfactory near vision. Future studies on larger samples are needed to confirm these findings.