Adaptive eyeglasses for presbyopia correction: an original variable-focus technology

Jarosz, Jessica; Molliex, Norbert; Chenon, Guilhem; Berge, B.

doi:10.1364/oe.27.010533

Cited by 22 publications

(13 citation statements)

References 36 publications

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“…Jarosz et al . have described a new lens featuring a 20-mm aperture and a 3 D range 9 . They have created a spectacles frame and mounted their tunable lenses with a laser-based distance sensor to control the required power of the lenses.…”

Section: Introductionmentioning

confidence: 99%

Portable device for presbyopia correction with optoelectronic lenses driven by pupil response

Mompeán

Aragón

Artal

2020

Sci Rep

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A novel portable device has been developed and built to dynamically, and automatically, correct presbyopia by means of a couple of opto-electronics lenses driven by pupil tracking. The system is completely portable providing with a high range of defocus correction up to 10 D. The glasses are controlled and powered by a smartphone. To achieve a truly real-time response, image processing algorithms have been implemented in OpenCL and ran on the GPU of the smartphone. To validate the system, different visual experiments were carried out in presbyopic subjects. Visual acuity was maintained nearly constant for a range of distances from 5 m to 20 cm.

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Section: Introductionmentioning

confidence: 99%

Portable device for presbyopia correction with optoelectronic lenses driven by pupil response

Mompeán

Aragón

Artal

2020

Sci Rep

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“…Smart Autofocusing Wearables: Recent advances in fluidfilled lenses [95]- [98] have enabled successful integration of large aperture variable-focus lenses into eyeglasses [98]- [101] integrated with object range sensors which measure the distance between the eyeglasses and the object a patient is trying to focus on. The range measured is utilized to automatically configure the power of the variable-focus lenses that corrects the accommodative deficiency [98], [99], as shown in the schematic of Fig. 2.…”

Section: Introductionmentioning

confidence: 99%

Correcting Presbyopia With Autofocusing Liquid-Lens Eyeglasses

Karkhanis

Ghosh

Banerjee

et al. 2022

IEEE Trans. Biomed. Eng.

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Presbyopia, an age-related ocular disorder, is characterized by the loss in the accommodative abilities of the human ocular system and afflicts more than 1.8 billion people world-wide. Conventional methods of correcting presbyopia fragment the field of vision, inherently resulting in significant vision impairment. We demonstrate the development, assembly and evaluation of autofocusing eyeglasses for restoration of accommodation without vision field loss. The adaptive optics eyeglasses consist of two variable-focus piezoelectric liquid lenses, a time-of-flight range sensor and low-power, dual microprocessor control electronics housed within an ergonomic frame. Patientspecific accommodation deficiency models were utilized to demonstrate a high-fidelity accommodative correction. Each accommodation correction calculation was performed in ~67 ms requiring 4.86 mJ of energy. The optical resolution of the system was 10.5 cycles/degree, featuring a restorative accommodative range of 4.3 D. This system can run for up to 19 hours between charge cycles and weighs ~132 g, allowing comfortable restoration of accommodative function.

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“…9 An approach to optofluidic spectacles offered by the Laclarée team is a fluid-filled focus-tuning lens assisted by a low-power, highvolume microfluidic actuator. 10 The problematic issues with all such focus-tuning lenses are (1) the frame dependence for actuation components placement at the lens frame as a fairly significant fluid volume has to be transported and (2) the slow response time for focus adjustment between viewing distances.…”

Section: Introductionmentioning

confidence: 99%

Digitized optofluidic element and its application to tristate lens for presbyopia correction

Portney¹,

Christ²,

Christ³

2021

Opt. Eng.

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Current optofluidic devices are analog focus-tunable elements with a continually varying focus between foci. An innovative digitized optofluidic element was developed to enable fast switching between the foci. The operation involves an internally placed elastic membrane of changing shape between the refractive and diffractive forms with a tiny amount of fluid transfer by a micro-actuator. This allows for switching the digitized optofluidic element between the refractive and diffractive states of the preset optical powers. A multimodal relief surface design was used in the diffractive state to manage the diffractive grooves and improve the chromatic characteristics. We applied finite element analysis to establish the membrane mechanical properties. The proof-of-concept prototypes were made using material bonding fabrication processes and were used to demonstrate an elastic membrane shape change between the refractive and diffractive forms for switching between the corresponding optical states. The design of the digitized optofluidic element allowed for bistate or tristate switching by a single actuator. The switchable element can be fairly thin, enabling conversion of a fixed lens into a dynamic lens switchable between two or three foci. The application of the tristate design to eyewear for presbyopia correction is discussed. © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Adaptive eyeglasses for presbyopia correction: an original variable-focus technology

Cited by 22 publications

References 36 publications

Portable device for presbyopia correction with optoelectronic lenses driven by pupil response

Portable device for presbyopia correction with optoelectronic lenses driven by pupil response

Correcting Presbyopia With Autofocusing Liquid-Lens Eyeglasses

Digitized optofluidic element and its application to tristate lens for presbyopia correction

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