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Grey Filter Contact Lens as Therapeutic Option for Acquired Reduced Binocular Visual Performance
British and Irish Orthoptic Journal, 2021 Disturbing binocular problems can be too complex to be treated in such a way that comfortable binocular single vision is restored. The grey filter contact lens could offer a safe and clinically useful way to help these patients. Background: In unilateral
Hans van Vliet +5 more
doaj +1 more source
Tunable Liquid Lenses: Emerging Technologies and Future Perspectives
Laser & Photonics Reviews, 2023 Tunable liquid lenses with controllable focal length attract much attention from many researchers due to the unique advantages of strong adjustability, low power consumption, fast response time, and easy integration.
Chao Liu +9 more
semanticscholar +1 more source
One-year myopia control efficacy of spectacle lenses with aspherical lenslets
British Journal of Ophthalmology, 2021 Aims To evaluate the 1-year efficacy of two new myopia control spectacle lenses with lenslets of different asphericity. Methods One hundred seventy schoolchildren aged 8–13 years with myopia of −0.75 D to −4.75 D were randomised to receive spectacle ...
J. Bao +11 more
semanticscholar +1 more source
Gradient Index Metasurface Lens for Microwave Imaging
Sensors, 2022 This paper presents the design, simulation and experimental validation of a gradient-index (GRIN) metasurface lens operating at 8 GHz for microwave imaging applications. The unit cell of the metasurface consists of an electric-LC (ELC) resonator.
Srijan Datta +2 more
doaj +1 more source
Weak-Lensing Ellipticities in a Strong-Lensing Regime [PDF]
The Astrophysical Journal, 2008 It is now routine to measure the weak gravitational lensing shear signal from the mean ellipticity of distant galaxies. However, conversion between ellipticity and shear assumes local linearity of the lensing potential (ie that the spatial derivatives of the shear are small), and this condition is not satisfied in some of the most interesting regions ...
Massey, R., Goldberg, D.M.
openaire +4 more sources
Modern Digital technology and its role in Cinematography using available light [PDF]
Maǧallaẗ Al-Turāṯ wa Al-Taṣmīm, 2022 the use of available light (it is any natural or artificial light or a mixture of them) is an artistic phenomenon where all types of available light can be used dramatically and adapted by the director of photography so that he can convey the dramatic ...
Maged Mahmoud +2 more
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Proceedings of the 26nd 2014 International Symposium on Implementation and Application of Functional Languages, 2014 Most complex applications inevitably need to maintain dependencies between subsystems based on some shared data. The dependent parts must be informed that the shared information is changed. As every actual notification has some communication cost, and every triggered task has associated computation cost, it is crucial for the overall performance of the
Domoszlai, L. +2 more
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The Long-Term Effect of Blue-Light Blocking Spectacle Lenses on Adults’ Contrast Perception
Frontiers in Neuroscience, 2022 PurposeTo evaluate the long-term effect of two different degrees of blue-light blocking (BB) spectacle lenses on adults’ contrast perception under various lighting conditions.MethodsIn total, 144 healthy adults aged 24.70 (±4.32 years) were recruited to ...
Yan Lian +5 more
doaj +1 more source
Liquid Crystal Devices for Beam Steering Applications
Micromachines, 2021 Liquid crystals are valuable materials for applications in beam steering devices. In this paper, an overview of the use of liquid crystals in the field of adaptive optics specifically for beam steering and lensing devices is presented.
Rowan Morris +2 more
doaj +1 more source
Applications of Hyaluronic Acid in Ophthalmology and Contact Lenses
Molecules, 2021 Hyaluronic acid (HA) is a glycosaminoglycan that was first isolated and identified from the vitreous body of a bull’s eye. HA is ubiquitous in the soft connective tissues of animals and therefore has high tissue compatibility for use in medication ...
Wan-Hsin Chang +7 more
semanticscholar +1 more source