April 27, 2026
2 min read
Key takeaways:
- The Tecnis Odyssey IOL demonstrated good tolerance to induced astigmatism.
- More than 96% of patients reported spectacle independence.
A full visual range IOL with violet light filtering showed good tolerance to induced astigmatism in patients corrected for distance vision, according to a study published in Journal of Refractive Surgery.
Hugo T. F. Borges, MD, and colleagues wrote that previous research has shown that IOLs can enhance contrast sensitivity by filtering high-energy violet light, which reduces scatter as well as dysphotopsias. They wanted to find out how the IOL under study might interact with residual refractive error.
The Tecnis Odyssey IOL demonstrated good tolerance to induced astigmatism. Image: Adobe Stock
“The increasing demand for high-quality visual outcomes is driven by patients’ elevated expectations for spectacle independence and the ongoing challenge of achieving the best visual performance after cataract surgery,” they wrote. “In this context, it becomes increasingly important to understand how different IOL technologies perform in the presence of residual refractive errors. Among these, residual astigmatism remains one of the most prevalent and visually significant, with the potential to adversely affect visual outcomes and patient satisfaction, even at low magnitudes.”
Borges and colleagues conducted a prospective, observational study of 30 patients who underwent cataract surgery and received one of two models of the Tecnis Odyssey violet light-filtering full visual range IOL (Johnson & Johnson). They assessed visual outcomes at 1 month and 3 months after surgery and used the Assessment of IntraOcular Implant Symptoms questionnaire to determine patient-reported outcomes.
“More than 90% of patients achieved visual acuity of 20/40 or better with 1.5 D with-the-rule (WTR) and 1 D oblique/against-the-rule (ATR) astigmatism,” the authors wrote. “WTR astigmatism resulted in visual acuity within one line for up to 1 D and two lines for 1.5 D, outperforming ATR, which achieved it for 0.5 D and 1.5 D, followed by oblique, which achieved 0.5 D and 1 D, respectively.”
Overall, 7% of patients experienced glare at night, and 3% of patients reported severe starbursts, spiderwebs, halos and snowballs. However, 96.6% of patients reported that they were spectacle independent, according to the study.
“The [violet light-filtering full visual range] IOL exhibited a commendable tolerance to induced astigmatism for distance vision,” Borges and colleagues wrote. “It was observed that WTR astigmatism was tolerated more readily than oblique and ATR orientations. The low incidence of reported dysphotopsias reinforces the favorable postoperative visual outcomes.”
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