Visual Outcomes And Defocus Curve Following Implantation Of A Novel Trifocal Intraocular Lens

To evaluate the visual performance and to obtain the defocus curve following cataract surgery and implantation of a new trifocal diffractive intraocular lens (IOL).

Subjects with cataract with increasing visual demands and more demanding. The number of intraocular lenses available that attempt to correct not only cataract and distance vision, but also presbyopia, have increased. Today patients not only require a full range of high-quality vision at all distances, also we, as professionals, should demand more from the intraocular lens designs to obtain more reliable results and a fewer number of post-surgical surprises.

A total of 25 patients were enrolled in this observational prospective study after implantation of the Acriva Trinova Pro IOL (VSY Biotechnology). Defocus curve (+3.00 to -5.00) was obtained monoculary under photopic conditions at three months after surgery and the optotype used was ETDRS. Furthermore, postoperative refraction and visual acuity at distance, intermediate and near distances were measured both a month and three months.

One month and three months after surgery, the spherical equivalent was -0.05 ± 0.32 D and -0.01 ± 0.51 D respectively. Corrected distance visual acuity corrected distance visual acuity (CDVA) of 0.01±0.10 LogMAR, corrected intermediate visual acuity (CIVA) of 0.18±0.16 LogMAR, and corrected near visual acuity (CNVA) of 0.16±0.13 LogMAR after one month. After 3 months the CDVA was 0.04±0.23 LogMAR, CIVA of 0.19±0.13 LogMAR, and CNVA of 0.13±0.15 LogMAR.

The results on the defocus curve at three months were in far distance -0.05 ± 0.32 LogMAR, intermediate 0.19 ± 0.12 LogMAR and near 0.20 ± 0.23 LogMAR.

Patients implanted with the Acriva Trinova Pro IOL showed a significant improvement in visual acuity in different distances. The results obtained show that this lens is predictable.