Outcomes associated with a violet light-filtering diffractive full-range of vision IOL
Karolinne Rocha, MD, PhD, of the Medical University of South Carolina, spoke with Ophthalmology 360 about a study she presented at the AAO 2025 Annual Meeting, which found that the new generation of full vision range of lenses have a better tolerance to residual refractive error.
Karolinne Rocha, MD, PhD:
Hi. I am Karolinne Rocha. I’m director of Cornea & Refractive Surgery at Storm Eye, Medical University of South Carolina in Charleston. We presented a study at the AAO this year that was very interesting. We looked at refractive outcomes, tolerance of residual astigmatism, and night vision symptoms of a new diffractive full vision range IOL with a violet light blocker. What we did in our study, we looked at, again, refractive outcomes, but also we simulated astigmatism post-op with the rule oblique and against the rule. We know that especially with diffractive multifocal patients, the patients, they usually don’t tolerate astigmatism. The distance vision really drops with any residual astigmatism. That’s why this study was so important, especially for the new generation full vision range intraocular lenses.
In our study was very interesting and we are very surprised because more than 90% of patients, they were able to see 20/40 or better, with up to 1.5 diopters of with the rule astigmatism and one diopter of oblique and against the rule astigmatism. Again, the patients, despite the astigmatism, they were still able to have a good distance vision, full vision range with those lenses. Patients were able to tolerate with the rule more than against the rule and oblique astigmatism. In terms of night vision symptoms, dysphotopsies, we use the IOL task force questionnaire, the IOLs questionnaire to assess night vision symptoms with diffractive optics. We’ve been using the same questionnaire for all our IOL studies. But for halos, starbursts, snowballs, the symptoms were severe in only 3% of patients and glare 7%. Really great for performance.
I think we’re excited about the new generation of full vision range of lenses, that they have a great dysphotopsia profile and they definitely have a better tolerance to residual refractive error.
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