Synchrony dual optic accommodating intraocular lens
Mean binocular uncorrected and distance-corrected visual acuity was 20/20 at far (0.00±0.11 log MAR and -0.06±0.08 log MAR, respectively), 20/20 at intermediate (0.01±0.13 log MAR and -0.01±0.10 log MAR, respectively), and 20/25 at near (0.10±0.14 log MAR and 0.14±0.15 log MAR, respectively).
Mesopic contrast sensitivity was within normal limits.
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).
Results: Clinical data at 6 months showed 89% of the eyes within ±1.0 D spherical equivalent refraction.
Both categories or presbyopia-correcting lenses accommodating IOLs and multifocal IOLs have advantages and limitations.
Generally, while both designs expand the range of clear vision compared with conventional monofocal IOLs, accommodating IOLs tend to provide sharper distance vision than multifocal lenses, and multifocal IOLs tend to provide more magnifying power for seeing fine print than accommodating IOLs.
The ciliary muscle, ciliary zonules and lens capsule keep the lens suspended in its proper position inside the eye for clear vision.
The primary difference between these two FDA-approved accommodating IOLs is that the Trulign Toric IOL can correct astigmatism as well as nearsightedness or farsightedness.
Conclusion: The new aspheric Synchrony Vu accommodating IOL provided good visual performance at a range of distances without affecting quality of vision and with minimal safety considerations.
Keywords: accommodating IOL, cataract surgery, intraocular lens, presbyopia This work is published and licensed by Dove Medical Press Limited.
Accommodation is made possible by the lens inside the eye and the circular muscle that surrounds the lens, called the ciliary muscle.
The lens and ciliary muscle are connected by a 360-degree series of fibers (called ciliary zonules) that extend from the ciliary muscle to the thin lens capsule (or "bag") that encloses the lens.