Retrospective data analysis reveals that several different combinations of IOLs provide excellent results.
As the largest provider of premium IOLs in the United Kingdom, Optical Express has a long history of using advanced technology to help patients see and function well after surgery.
With the proliferation of new presbyopia-correcting IOLs, we have offered patients a range of options over the years, from bilateral high, low or mid-add multifocal IOLs to extended depth of focus (EDOF) IOLs, and various combinations of these technologies.
Recently, we conducted a retrospective analysis of clinical and patient-reported outcomes with three different combinations of presbyopia-correcting IOLs. We looked at a large data set of patients who had undergone bilateral lens surgery at Optical Express over a four-year period between 2015 and 2018) and who had at least three-month follow-up.
We compared three different lens combinations used during this time period: 3,362 patients with bilateral Tecnis Multifocal +2.75 (the lowest available add power for this lens); 1,250 patients with the Tecnis Symfony EDOF lens in one eye and the Tecnis Multifocal +2.75 in the other; and 665 patients with Symfony in one eye and the mid-add Tecnis Multifocal +3.25 in the other.
Demographic characteristics and preoperative refractions were similar among all three groups. The lens groups were not random, however. Lens selection was determined preoperatively, based on conversations with the patient about his or her visual requirements and goals, as well as anatomical or optical factors relevant to the decision.
Subjects did very well with all three lens combinations. At three months, 62.4% were seeing 6/5 (20/16) or better and 86.4% were seeing 6/6 (20/20) or better binocularly at distance without correction. There were no statistically significant differences in the rate of 20/20 uncorrected distance visual acuity (UDVA) among the groups. The Symfony/3.25 group was more likely to have 20/40 or better UDVA.
At the three-month timepoint studied in this analysis, some patients may still have had residual refractive error. Secondary procedures to enhance the refractive effect, if necessary, had not yet been performed.