Accommodating intraocular lenses a critical review

S72804 Checked for plagiarism Yes Review by Single-blind Peer reviewer comments 2 Editor who approved publication: Dr Scott Fraser Visual Sciences Research Centre, Universidade de Lisboa, Portugal Purpose: To describe the clinical performance of a new dual-optic intraocular lens (IOL) with an enhanced optic profile designed to mimic natural accommodation.Patients and methods: Prospective multicenter clinical study with the new dual-optic aspheric accommodating IOL (Synchrony Vu) in 74 patients (148 eyes) undergoing cataract surgery. Examinations at 1 month and 6 months included subjective refractions; visual acuities at near, intermediate, and far; mesopic contrast sensitivity with and without glare; safety data; and subjective survey on dysphotopsia (halos and glare).Near full aberration correction was achieved with the doublet intraocular lens. The modulation transfer function and Strehl ratio were superior for the doublet lens. Slade, “Efficacy and safety of multifocal intraocular lenses following cataract and refractive lens exchange: Metaanalysis of peer-reviewed publications,” J. Although refilling the capsular bag with a clear, but elastic substance, theoretically would lead to the desirable result, experiments in this field have been unsuccessful so far [4].Accepted for publication 3 September 2014 Published 19 November 2014 Volume 2014:8 Pages 2289—2295 DOI purpose of our prospective study was the comparison of the postoperative visual performance with a progressive-optic refractive and diffractive multifocal IOL and an accommodating IOL.A doublet intraocular lens optimized for both chromatic and monochromatic aberration correction in pseudophakic eyes is presented.

Thus, even emmetropic patients who were spectacle independent beforehand will eventually become dependent on reading spectacles once they have become presbyopic.

Ray-tracing techniques were applied to design the lens in white light within a chromatic eye model.

Combinations of two materials, already commonly used in intraocular lenses, as acrylic and silicone, were used.

Iterative optimization algorithms were employed to correct for longitudinal chromatic aberration, spherical aberration and off-axis aberrations within 10 degrees of visual field. Cochener and Concerto Study Group, “Clinical outcomes of a new extended range of vision intraocular lens: International Multicenter Concerto Study,” J.

The performance of this lens was compared with a standard single-material aspheric intraocular lens.