Visual Outcomes Of A Novel Extended Monofocal Intraocular Lens (Evolux) After Cataract Surgery

To evaluate the visual outcomes of a novel extended, non-diffractive, hydrophobic monofocal intraocular lens (IOL) based on spherical aberration technology: EVOLUX (SIFI, Catania, Italy).

Eye and Vision Institute, The Medical City, Ortigas Avenue, Metro Manila, Philippines

Twenty patients (40 eyes) for phacoemulsification and bilateral implantation of EVOLUX IOL (SIFI) are tested. At 2-8 days (T1), 30-45 days (T2), and 90-105 days (T3) after surgery, the following parameters for monocular and binocular visual acuity (VA) are measured: uncorrected VA for distance (UDVA), intermediate at 80cm (UIVA 80cm) and 63cm (UIVA 63cm), and near at 40 cm (UNVA 40cm); and best-corrected VA for distance (CDVA), intermediate (DCIVA 80cm and 63cm) and near (DCNVA 40cm). In addition, contrast sensitivity (CS) and photic phenomena (glare and haloes) are assessed.

The mean spherical refraction (±SD) is -0.04(±0.20) diopters. Mean (±SD) binocular UDVA, UIVA 80cm, UIVA 63cm, and UNVA 40cm are -0.21(±0.06), 0.28(±0.09), 0.22(±0.08), and 0.20(±0.08) logMAR, respectively; while mean (±SD) binocular CDVA, DCIVA 80cm, DCIVA 63cm, and DCNVA 40cm are -0.25(±0.06), 0.28(±0.07), 0.21(±0.07), and 0.18(±0.07) logMAR, respectively. Far (1m) and near (40cm) mean binocular CS are 1.69(±0.11) and 1.71(±0.08) logCS, respectively. Mean binocular halo size and intensity are 13/100 and 17/100. Mean binocular glare size and intensity are 12/100 and 12/100.

Bilateral intraocular implantation with the novel advanced monofocal EVOLUX IOL (SIFI) provides excellent distance and extended intermediate vision in addition to high contrast sensitivity and low occurrence of photic phenomena.