Thanks for synchrony dual optic accommodating iol CRSToday. Our advertisers are important supporters of this site, and content cannot be accessed if ad-blocking software is activated. Need help? Click here for instructions. All Rights Reserved Privacy Policy. Achieving the Best Outcomes in Cataract Surgery. Refractive Surgeryfeature Stories. Focus On Pediatric Ophthalmology. The Latest in Pediatric Cataract Surgery. Excimer Laser Ablation for Presbyopic Correction. Presbyopic Synchrony dual optic accommodating iol for a Wide Range of Patients.

Is Monovision Still an Option for Presbyopia? Corneal Inlays: Current and Future Designs. The idea behind this three-dimensional design is to mimic the natural lens and how its response to the contraction and relaxation of the ciliary muscle increases paraxial power and provides accommodation.

This design maximizes accommodative amplitude with consistent results, 1 which is an advantage over single-optic IOLs. The performance of the dual-optic accommodating IOL has been discussed 2 and objectively demonstrated for up to 4 years postoperatively, both with dynamic high-resolution ultrasound biomicroscopy and with iTrace aberrometry Tracey Technologies.

A central aspheric zone with negative spherical aberration was added to the IOL. Again, the objective is to mimic the natural lens, which shows greater changes in optical power in its central region synchrony dual optic accommodating iol accommodation than in its more peripheral regions. The new design increases depth of focus through negative spherical aberration while maintaining optical quality under photopic and mesopic conditions. Testing under photopic conditions demonstrated preservation of optical quality with the new optic profile per the International Organization for Standardization's standards and a 1.

Under mesopic conditions, there was also an improvement in optical quality modulation transfer function with the Synchrony Vu compared to the original Synchrony lens. Recently, my colleagues and I conducted a prospective case series of patients bilaterally implanted with the Synchrony Vu accommodating IOL after standard phaco surgery for the treatment of visually significant cataracts.

We assessed patients' uncorrected synchrony dual optic accommodating iol distance-corrected near 40 cmintermediate 80 cmand distance 4 m visual acuities using Early Treatment Diabetic Retinopathy Study ETDRS charts.

We also tested their mesopic contrast sensitivity with and without glare using the Optec Vision Sciences Research Corporation. Additional data included manifest refraction, dysphotopsia such as halos and glare, complications, and adverse events. Slit-lamp examinations during the early postoperative period found synchrony dual optic accommodating iol evidence of significant inflammation or other complications Figure 1. Eighty percent reported not using visual correction for near Figure synchrony dual optic accommodating iol. The mean spherical equivalent was The main advantage of the dual-optic accommodating IOL is that it provides excellent quality of vision without compromising contrast sensitivity and with a very low incidence of dysphotopsia such as halos and glare due to the lens' monofocal optics.

Patients' visual acuity is excellent for distance and intermediate distance and very good for near, which translates as high levels of spectacle independence aforementioned study by my colleagues and me and also research by Ossma et al 2.

A preloaded injector facilitates the easy and safe implantation of the IOL synchrony dual optic accommodating iol a small incision. Emmetropia is usually achieved 4 to 6 weeks after surgery. For this reason, many patients prefer to wait for stabilization before undergoing surgery on their second eye.

The new dual-optic accommodating IOL represents an important addition to the alternatives for presbyopic correction during cataract surgery. With its enhanced optic profile and improved depth of focus, the Synchrony Vu provides very good near and intermediate vision without sacrificing distance visual acuity and quality of vision.

Eduardo F. He is a paid consultant synchrony dual optic accommodating iol Abbott Medical Optics Inc. Search for:. End of Issue. Synchrony dual-optic accommodating intraocular lens. Part I: optical and biomechanical principles and design considerations. J Cataract Refract Surg. Part 2: pilot clinical evaluation. Objective and subjective evidence of accommodation 4 years after implantation of dual-optic accommodating IOL. Spatially variant changes in lens power during ocular accommodation in a rhesus monkey eye.

J Vis. Development of an optically enhanced dual-optic accommodating intraocular lens.

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