ACHIEVING FUNCTIONAL TRIFOCALITY: EARLY FUNCTIONAL RESULTS OF A BINOCULAR DIFFRACTIVE TRIFOCAL INTRAOCULAR LENS SYSTEM

To evaluate the clinical outcomes of a trifocal (MIOL), diffractive binocular intraocular lens system (Artis Symbiose, Cristalens Industrie, France), where one lens exhibits an extended depth of focus profile for intermediate vision (Artis Mid) and the other lens for near vision (Artis Plus)

International Vision Correction Research Centre (IVCRC), Dept. of Ophthalmology, University of Heidelberg, Germany

The first results of this ongoing clinical study include 4 patients who underwent phacoemulsification due to cataract with implantation of the MIOL (Artis Symbiose, Cristalens Industrie, France). Subjective refraction, corrected and uncorrected visual acuity, monocular and binocular [logMar] for distance, intermediate and near vision, as well as a binocular and monocular best-corrected defocus curve analysis were evaluated 3 months after surgery

Median binocular UDVA, UIVA and UNVA at 3 months postoperatively were 0.00 logMAR (range -0.08 to 0.10 logMAR), 0.00 logMAR (range -0.10 to 0.02 logMAR), and 0.00 logMAR (range 0.00 to 0.40 logMAR), respectively. Median binocular CDVA, DCIVA and DCNVA at 3 months postoperatively were 0.00 logMAR (range -0.10 to 0.08 logMAR), 0.00 logMAR (range -0.10 to 0.10 logMAR), and 0.00 logMAR (range 0.00 to 0.30 logMAR). The binocular distance-corrected defocus curve at 3 months showed a continuous visual acuity of 0,20logMAR or better in the range of +0.5 to -2.5 diopters of defocus

The initial results indicate good visual acuity at far, intermediate, and near distances, as well as throughout a wide range of defocus. Evaluation of visual acuity outcomes at 6 months postoperatively is ongoing