Synchrony dual optic accommodating intraocular lens
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1 Fundacion Valle del Lili, Cali-Colombia2 Universidad Industrial de Santander, Bucaramanga-Colombia3 Universidad Autonoma de Bucaramanga, Bucaramanga-Colombia4 Abbott Medical Optics Inc, Irvine, USAFinancial Disclosurea Consultant Abbott Medical Optics b Scientist at Abbott Medical Optics Inc.
Typically, the eye’s “focusing” or ciliary muscle powers the movement or shape change.
Currently approved accommodating designs cause less loss of contrast sensitivity and are less likely than multifocal IOLs to produce glare and halos.
Accommodation occurs by means of a liquid crystal optic that changes power in response to an electronic signal.
The lens contains a rechargeable battery and changes focus based on physiological triggers.
Accommodating IOLs One approach, accommodating IOLs, tackle the problem differently.
Instead of placing multiple focusing elements in a single fixed lens, most accommodating lenses change focus by utilizing a single optical element that moves like a camera lens or alters shape.
As a result, currently approved accommodating lenses typically can’t provide a full range of vision.That is not enough to give patients good distance and near vision, although it may suffice for good distance and intermediate vision.Some critics claim that a single-optic IOL can’t possibly move enough with the eye to produce a substantial change in power.THE PENDING Tetraflex (Lenstec) is a mechanical accommodating IOL with a single, square-edged, acrylic optic that flexes to provide accommodation. The Tek-Clear IOL (Tekia) is another square-edged, single-optic mechanical accommodating IOL that moves in response to natural movement of the ciliary muscle.It received a CE mark in 2006, but is not yet FDA-approved.