Design and fabrication of accommodating fluidic intraocular lens

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After about sixty years of IOL development, one key remaining problem is its limited accommodation range compared with natural eyes.

To overcome this performance limit, we explore bio-inspired fluidic IOL.

Experimental results on fluidic IOL demonstrated a record high 12 Diopter (D) tuning range with a movement around its equator as small as 0.3 mm, achieved under a modest amount of force of 6 grams or 0.06 Newtons.

The tuning range of the bio-inspired fluidic lens is comparable to a young, healthy eye, but the force and the movement required for ciliary muscle in order to achieve the wide accommodation range is comparable to an aged eye.

Intraocular lens (IOL) is a replacement lens for patients with crystalline lens problems.Amita Patnaik Michael Gordon Frank Tsai Kyriakos P Papadopoulos Drew Rasco Muralidhar Beeram Siqing Fu Filip Janku Scott M Hynes Sushma R Gundala Melinda D Willard Wei Zhang Aimee Bence Lin David Hong Ophthalmic Res 2018 Apr 13. Beijing Institute of Ophthalmology, Beijing Tong ren Eye Center, Beijing Ophthalmology and Visual Science Key Lab, Beijing Tong ren Hospital, Capital Medical University, Beijing, China. Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital of Capital Medical University; Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing, China. Graefes Arch Clin Exp Ophthalmol 2017 Apr 23;255(4):709-717. Department of Ophthalmology, Jacobs Retina Center at the Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA. By mimicking this desirable feature, a fluidic intraocular lens can achieve a large accommodation range as well.The device is designed that the lens can fully utilize the ciliary muscle force and the deformation of capsular bag during accommodation.One key problem for today's IOL is its limited ability to retain the original accommodation capability inherent to human eyes.Unlike conventional optical lenses, a bio-inspired fluidic lens changes the curvature of the lens under an external force, resulting in a lens tuning power about 5 times as large as the current devices.Disclaimer: Each patient has unique visual characteristics and requires the consultation of a qualified eye surgeon before determining what treatment modality is best.The information provided here is only meant to communicate information as a general educational service.Contact your librarian or system administrator or Login to access OSA Member Subscription You do not have subscription access to this journal.10, at which time the external pressure source 77 is removed.

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