Synchrony dual optic accommodating intraocular lens pueblo bonito dating

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."When we started our studies of the lens," recalls Colombian surgeon and Visiogen consultant Ricardo Alarcon-Jimenez, "we used forceps to implant it, which was really difficult because it's two lenses in one."Early on during the evolution of lens, the company knew it needed a reliable injector, says Dr. "A pre-loaded injector system was eventually developed, and it has made implantation of this complicated lens design surprisingly manageable.What the injector does is to first displace the rear optic ahead of the front optic by way of a sliding tray," Dr. "Both optics are then compressed into the lumen of the injector.

A prospective noncomparative case series with retrospective control comprised 21 patients (26 eyes) scheduled for small-incision extracapsular cataract extraction by phacoemulsification with implantation of the Synchrony dual-optic accommodating IOL (Visiogen) (accommodating IOL group) and 10 patients who had small-incision extracapsular phacoemulsification with implantation of a monofocal, single-optic IOL at least 6 months previously (control group).Como consecuencia, disminuye la capacidad de acomodación, lo que dificulta el enfoque de los objetos cercanos.Con el fin de restaurar la visión de cerca, se han desarrollado e introducido diferentes dispositivos que producen múltiples focos.The injector requires a larger incision than for current monofocal IOLs, and I prefer about a 3.7- to 3.8-mm incision, as measured with an incision gauge.""The capsulorhexis must be small enough to completely overlap and restrain the forward-moving anterior optic," Dr. "If the capsulorhexis is too large, or it's eccentric so that it fails to overlap one part of the anterior optic edge, you can't insert the lens."The surgeon also has to get visually oriented as to what part of which optic is emerging out of the injector first," Dr. "Typically, you have to make minor manipulations to properly position the two optics.At that point, the lens will completely fill the capsular bag—and you can't really see the rear optic, which is obscured by the front optic—and the surgeon uses bimanual irrigation/aspiration to completely remove the OVD, which includes any amount sandwiched between the two optics."The results from the Synchrony's FDA trial of nearly 450 implantations at 20 investigator sites are currently being tabulated and aren't available for publication. Alarcon-Jimenez, however, implanted 84 lenses in 42 patients, and has two years of follow-up in 22 implantations.

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The outcomes show comfortable near vision, higher patients’ satisfaction rates, and minimal postoperative complications like Posterior Capsular Opacification and Anterior Capsular Opacification, due to their design and material.

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