Redefining Full Range of Focus With Pairing Vivinex Gemetric and Vivinex Gemetric Plus IOLs

Like the other authors at HOYA’s User Meeting during the 2023 ESCRS, I am convinced of the benefits provided by pairing the Vivinex Gemetric (G) and Vivinex Gemetric Plus (GP) IOLs.

I started using these IOLs in January 2022, and what really grabbed my attention was the concept of pairing different light distributions to achieve a full range of focus. My experience in the past has been that working distance is a tricky target to get right, with most full-range-of-focus IOLs having a shortfall of vision in the 50 to 70 cm range. Pairing G-GP, however, provides a continuum of light distribution from 30 to 70 cm. After a series of 40 patients who received this approach, my impression is that patients can consistently achieve a full range of vision.

DATA REVIEW

In my clinic, 29 patients (58 eyes) with a mean age of 65.1 ± 6.76 years received the paired approach G-GP, and eight patients (16 eyes) received bilateral G-G.

A toric IOL was selected if the net corneal cylinder was greater than 0.60 D. Almost 50% of patients received a toric lens. Most lenses (81%) were implanted during cataract surgery, while 19% were implanted as refractive lens extraction.

At 4 to 6 weeks postoperative, 96.6% and 93.8% of eyes in the paired G-GP and the bilateral G-G groups, respectively, were within ±0.50 D of residual refractive spherical equivalent. The difference was not statistically significant.

The main study endpoint was postoperative binocular visual acuity. There were no differences in binocular uncorrected distance and intermediate visual acuities between both study groups, but it is the uncorrected near vision where the pairing approach stands out. In the G-GP group, 51.7% of patients had a near visual acuity equal or better than 0.0 logMAR, while no patient had such result in the bilateral G-G group. Overall, in both groups, 100% of patients were equal or better than 0.2 logMAR for near distance (Figures 1 and 2).

CONCLUSION

My personal data is very similar to the data presented from the multicenter clinical trial. Bilateral G-G implantation and pairing G-GP both provide patients with excellent distance vision. However, pairing the two lenses provides the benefits of both Vivinex Gemetric lens models to achieve a full range of vision.

Often, one needs to be careful implanting multifocal IOLs in eyes with myopia. However, in my experience, these patients are often delighted with this pairing approach because they both maintain excellent near vision and improve their distance vision following surgery. Also, the dysphotopsia profile of the Vivinex Gemetric and Vivinex Gemetric Plus is comparable to other full-range-of-focus IOLs.

I am delighted to say that my mother received the Vivinex Gemetric & Vivinex Gemetric Plus pairing in March 2023 and is 100% satisfied with the result.

2024-03-28_HSOE_XY1-G_XY1-GT_XY1_GP_XY1-GPT_SUPP_EN

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