Synchrony dual optic accommodating lens

29-Oct-2019 21:51

Defocus curve analysis suggested a mean accommodative range of 3.22 diopters (D) ± 0.88 (SD) (range 1.00 to 5.00 D) in the accommodating IOL group and 1.65 ± 0.58 D in the control group (range 1.00 to 2.50 D) (Supported in part by unrestricted grants from That Man May See, San Francisco, California, and Research to Prevent Blindness, New York, New York, USA. Ossma, Galvis, Vagefi, and Trager have no financial or proprietary interest in any material or method mentioned. Vargas and Mc Leod have a financial interest in Visiogen Inc., and in the intraocular lens described.

In the search for the best presbyopia treatment, a lot of attention has been paid to multifocal and diffractive intraocular lenses, while there's been little movement on the accommodating IOL front.

This limits the accommodative potential for myopic patients requiring lower-power optics.

"The concept behind a dual-optic accommodating system is to be able to place a very high-powered moving optic in every eye and then use a rear minus optic to adjust the net power to whatever is needed for the individual eye," he says.

Conversely, as the bag tenses, the two optics are compressed together, restoring distance focus.

You can view the forward movement of the anterior optic with high-frequency ultrasound biomicroscopy."The challenge with the Synchrony involved getting the large lens into the eye, however.

The Synchrony is the first dual-optic accommodating IOL, and is a single-piece silicone lens that has a high-powered 32 D anterior optic joined to a rear minus-powered optic by flexible silicone spring-like struts.

Since light is not divided into multiple foci, Synchrony yields contrast sensitivity curves comparable to those of monofocal IOLs.A look at the five-year outcomes with the lens has shown that all implanted subjects were better than 20/40 at distance, intermediate, and near vision tests.The Synchrony lens is designed to replicate the natural lens by increasing its power when viewing near targets and reducing it when looking at a distant object.That may change in the next year, as the clinical investigators and company researchers at Visiogen are readying their Phase III data for the Synchrony dual-optic accommodating IOL for submission to the Food and Drug Administration.Here's a look at this technology, its long-term international results and the injector that makes the whole package work.

Since light is not divided into multiple foci, Synchrony yields contrast sensitivity curves comparable to those of monofocal IOLs.A look at the five-year outcomes with the lens has shown that all implanted subjects were better than 20/40 at distance, intermediate, and near vision tests.The Synchrony lens is designed to replicate the natural lens by increasing its power when viewing near targets and reducing it when looking at a distant object.That may change in the next year, as the clinical investigators and company researchers at Visiogen are readying their Phase III data for the Synchrony dual-optic accommodating IOL for submission to the Food and Drug Administration.Here's a look at this technology, its long-term international results and the injector that makes the whole package work.Uncorrected near visual acuity was 20/40 or better in all eyes.