accommodating lens changing Curvature in Vivo (theoretically)

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Fluid Lens Accommodating IOL (PowerVision)

The FluidVision® Accommodating Intraocular Lens

Accommodation refers to the eye’s ability to dynamically adjust focus for clear vision at all distances. The FluidVision accommodating IOL from PowerVision contains a tiny amount of fluid inside the lens that moves in response to the natural muscle forces in the eye. The FluidVision lens provides True Accommodation™ by mimicking the eye’s natural accommodative process, changing shape and becoming thicker when the patient needs to see up close or thinner to see far away.  (from Powervision Website)

Unlike the Nulens and the Lumina this 3rd investigational Device meant to change the Curvature in vivo is meant to be placed in the capsule. 

Juvene Accommodating IOL (LensGen)

 

“The engineers at LensGen® have developed a biomimetic device with the inherent ability to change curvature similar to the natural human lens. In doing so the team at LensGen® has taken the next step forward in developing a superior and breakthrough technology in the surgical treatment of cataracts and presbyopia.”

This patented Technology is based on a monofocal lens that has a curvature changing fluid compartment that actively changes shape. A Modified Ring is placed into the capsule and the optic is then inserted separetely.

 

 

 

Sapphire IOL (Elenza)

 

The Sapphire IOL (Elenza) is electronically controlled, remotely programmable, customisable and utilises nanotechnology, artificial intelligence and advanced electronics to auto-adjust focus in response to pupillary changes. Speed and amplitude of pupillary responses are used to differentiate between light and accommodation. The power-cell requires recharging every three-to-four days, has hibernation mode and a fail-safe mechanism that converts it to monofocal status till recharged.

First announced in 2011, Many Prominent Ophthalmic Surgeons in the directory Board of Elenza, One of the two probable  current “electronic IOL” .

 

Vista Lens (Vista Ocular)

 

Vista Ocular (Ohio, US), is developing an innovative technology to bypass pupillary and ciliary muscle movement, and target the muscle’s action potential as the accommodative signal. The technology is patented and more patents are pending. The company is currently in the process of testing an in-vivo sensor system for the detection of the ciliary muscle’s action potential. This design also incorporates rechargeable battery power with a flexible lens system to change optical power in a variable fashion (Figure 3). Along with Elenza are the 2 US based start-ups that aim to develop a electronic IOL