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02-Jun-2020 05:21

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Initial reports of close to 100 eyes implanted with this lens have demonstrated that more than 95% of eyes have accommodative amplitudes of more than 1 D, 70% have more than 2 D, and 20% have more than 3 D.

There are currently no peer-reviewed publications to substantiate these promising reports.

After being placed in the aqueous at body temperature, the Medennium Smart IOL transforms into a soft gel that completely fills the capsular bag and maintains some elasticity.

The AMO Flex Optic IOL is an accommodating IOL that fills or conforms to the capsular bag and is designed to increase its anterior radius of curvature (and true power) in addition to changing its position in the capsular bag during accommodative effort.

Marchini et al reported the mean anterior axial movement of 20 crystalens IOLs to be only 0.33 ± 0.25mm 2004;76-2482).

Yet, despite a mean accommodative amplitude of 1.08 ± 0.54 D (range 0-2.25), 86% of patients in this study required no correction for near vision during routine daily activities.

The eyeonics crystalens is a 10.5 mm, hinged plate haptic silicone lens with a 4.5 mm optic (Figure 2).

The Morcher Bio Com Fold Type 43E, Human Optics 1 CU, Lenstec Tetra Flex, and eyeonics crystalens are examples of single-optic IOLs.

During accommodative effort, the 2 lens components increase their distance from each other, resulting in increased effective power of the overall lens.

The dual-optic design offers potential advantages over single-optic designs in that less lens excursion is necessary with the dual-optic in order to achieve a desired amount of accommodation (Figure 3) 2003;84-2287).

These types of lenses change their true power during accommodation, and hold the promise of providing higher amplitudes of power change than can be currently achieved with single and dual-optic accommodating lenses.

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Deformable IOLs are, for the most part, in the preliminary stages of development and animal research.

Not only will this enhance cataract surgery results, but it will also enable refractive surgeons to offer their patients a procedure that is unhindered by the restrictions of corneal refractive surgery and presbyopia.