FDA Approves Abbott PMA for 1st Depth-of-Focus IOL
FDA has approved an Abbott Medical Optics PMA for what the agency describes as the “first intraocular lens (IOL) that provides cataract patients with an extended depth-of-focus, which helps improve their sharpness of vision (visual acuity) at near, intermediate and far distances.” Traditional monofocal IOLs have been limited to improving distance vision, an agency release says. “The Tecnis Symfony IOL improves visual acuity at close, intermediate and far ranges and, therefore, may reduce the need for patients to wear contact lenses or glasses after cataract surgery,” it says.
Approval is based on clinical trial data comparing 148 cataract patients implanted with Abbott’s device to 151 cataract patients implanted with a monofocal IOL. “Of the patients implanted with the Tecnis Symfony IOL, 77% had good vision (20/25), without glasses at intermediate distances, compared to 34% of those with the monofocal IOL,” FDA says. “For near distances, patients with the Tecnis Symfony IOL were able to read two additional, progressively smaller lines on a standard eye chart than those with the monofocal IOL. Both sets of patients had comparable results for good distance vision.”
The agency cautions that patients implanted with the Tecnis Symfony IOL may experience worsening or blurred vision, bleeding or infection. It may also cause “reduced contrast sensitivity” which worsens under poor visibility conditions (fog, dim light).