Electro-optic diffractive multifocal lens with electrically reconfigurable multifocal planes

Kumar, Mareddi Bharath; Kang, Daekyung; Adeshina, Mohammad Awwal; Kim, Soobae; Kim, Tae‐Wan; Park, Jonghoo

doi:10.1016/j.optlaseng.2020.106459

Cited by 3 publications

(2 citation statements)

References 23 publications

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“…Electro-optic diffractive multifocal lens has been demonstrated that provides multiple focal planes simultaneously that are electrically switchable without compromising the field of view when combined with a refractive lens such as a human crystalline lens. 143 …”

Section: The Patient Experience Of / Journey Through Presbyopiamentioning

confidence: 99%

“…Liquid crystal (birefringent material that bend light dependent on the orientation of the molecules) spectacle lenses have also been proposed for presbyopic correction,142 but are also currently limited by their field of view and still require significant refinement and testing before widespread application. Electro-optic diffractive multifocal lens has been demonstrated that provides multiple focal planes simultaneously that are electrically switchable without compromising the field of view when combined with a refractive lens such as a human crystalline lens 143…”

Section: The Patient Experience Of / Journey Through Presbyopiamentioning

confidence: 99%

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New insights in presbyopia: impact of correction strategies

2023

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Presbyopia occurs when the physiologically normal age-related reduction in the eyes focusing range reaches a point, when optimally corrected for distance vision, that the clarity of vision at near is insufficient to satisfy an individual’s requirements. Hence, it is more about the impact it has on an individual’s visual ability to function in their environment to maintain their lifestyle than a measured loss of focusing ability. Presbyopia has a significant impact on an individual’s quality of life and emotional state. While a range of amelioration strategies exist, they are often difficult to access in the developing world and prescribing is generally not optimal even in developed countries. This review identified the need for a standardised definition of presbyopia to be adopted. An appropriate battery of tests should be applied in evaluating presbyopic management options and the results of clinical trials should be published (even if unsuccessful) to accelerate the provision of better outcomes for presbyopes.

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Section: The Patient Experience Of / Journey Through Presbyopiamentioning

confidence: 99%

Section: The Patient Experience Of / Journey Through Presbyopiamentioning

confidence: 99%

New insights in presbyopia: impact of correction strategies

2023

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Polarization-independent electro-optic phase modulator based on trilayer birefringent materials

et al. 2022

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Galvanometer driven optical system for laser dynamic focusing

Yu¹,

Yang²,

Zhang³

2022

Opt. Express

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This paper proposes a novel dynamic focusing module driven by galvanometers to position the laser focus with high speed and high precision. Thanks to the extremely high repeatability and the fast response time of galvanometers, the repeatability of the laser focus positioning is far less than the Rayleigh length of the beam and its response time is around 600 µs. An important feature of the proposed module lies in that it can be further integrated to an XY galvo scanner to realize a 3-axis laser scanning system. Due to the same galvanometers of the dynamic focus module and the XY scanner, the laser focus could be positioned in a simultaneous, rapid and precise manner in all three axes. Various simulation and experimental results demonstrate the feasibility and performance of the proposed dynamic focus module and the processing capability of the 3-axis scanning system with the proposed module.

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Electro-optic diffractive multifocal lens with electrically reconfigurable multifocal planes

Cited by 3 publications

References 23 publications

New insights in presbyopia: impact of correction strategies

New insights in presbyopia: impact of correction strategies

Polarization-independent electro-optic phase modulator based on trilayer birefringent materials

Galvanometer driven optical system for laser dynamic focusing

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