Design and characterization of new azimuth-type lens for reading glasses with extended depth of focus

Author(s):  
Ryoma Onose ◽  
Shinichi Komatsu
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yueyang Zhong ◽  
Kai Wang ◽  
Xiaoning Yu ◽  
Xin Liu ◽  
Ke Yao

AbstractThis meta-analysis aimed to evaluate the clinical outcomes following implantation of trifocal intraocular lenses (IOLs) or a hybrid multifocal-extended depth of focus (EDOF) IOL in cataract or refractive lens exchange surgeries. We examined 13 comparative studies with bilateral implantation of trifocal (898 eyes) or hybrid multifocal-EDOF (624 eyes) IOLs published through 1 March 2020. Better uncorrected and corrected near visual acuity (VA) were observed in the trifocal group (MD: − 0.143, 95% CI: − 0.192 to − 0.010, P < 0.001 and MD: − 0.149, 95% CI: − 0.217 to − 0.082, P < 0.001, respectively), while the hybrid multifocal-EDOF group presented better uncorrected intermediate VA (MD: 0.055, 95% CI: 0.016 to 0.093, P = 0.005). Trifocal IOLs were more likely to achieve spectacle independence at near distance (RR: 1.103, 95% CI: 1.036 to 1.152, P = 0.002). The halo photic effect was generated more frequently by the trifocal IOLs (RR: 1.318, 95% CI: 1.025 to 1.696, P = 0.031). Contrast sensitivity and subjective visual quality yielded comparable results between groups. Trifocal IOLs demonstrated better performance at near distance but apparently led to more photic disturbances. Our findings provided the most up-to-date and comprehensive evidence by comparing the benefits of advanced IOLs in clinical practice.


Author(s):  
Makoto Inoue ◽  
Nina Teresa Aicher ◽  
Yuji Itoh ◽  
Hiroko Bissen-Miyajima ◽  
Akito Hirakata

2005 ◽  
Author(s):  
Sandro Förster ◽  
Herbert Gross ◽  
Frank Höller ◽  
Lutz Höring

2021 ◽  
Vol 37 (9) ◽  
pp. 595-600
Author(s):  
Pedro Tañá-Sanz ◽  
María Dolores Rodríguez-Carrillo ◽  
Belén Elvira-Giner ◽  
María Ruiz-Santos ◽  
Robert Montés-Micó ◽  
...  

2021 ◽  
Vol 37 (8) ◽  
pp. 532-537
Author(s):  
Javier Ruiz-Alcocer ◽  
Irene Martínez-Alberquilla ◽  
Laureano A. Rementería-Capelo ◽  
Pablo De Gracia ◽  
Amalia Lorente-Velázquez

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Elyas Bayati ◽  
Raphaël Pestourie ◽  
Shane Colburn ◽  
Zin Lin ◽  
Steven G. Johnson ◽  
...  

Abstract We report an inverse-designed, high numerical aperture (∼0.44), extended depth of focus (EDOF) meta-optic, which exhibits a lens-like point spread function (PSF). The EDOF meta-optic maintains a focusing efficiency comparable to that of a hyperboloid metalens throughout its depth of focus. Exploiting the extended depth of focus and computational post processing, we demonstrate broadband imaging across the full visible spectrum using a 1 mm, f/1 meta-optic. Unlike other canonical EDOF meta-optics, characterized by phase masks such as a log-asphere or cubic function, our design exhibits a highly invariant PSF across ∼290 nm optical bandwidth, which leads to significantly improved image quality, as quantified by structural similarity metrics.


2020 ◽  
Author(s):  
Bingying Chen ◽  
Tonmoy Chakraborty ◽  
Stephan Daetwyler ◽  
James D. Manton ◽  
Kevin Dean ◽  
...  

AbstractWe present a phase mask that can be easily added to any multi-photon raster scanning microscope to extend the depth of focus five-fold at a small loss in lateral resolution. The method is designed for ultrafast laser pulses or other light-sources featuring a low coherence length. In contrast to other methods of focus extension, our approach uniquely combines low complexity, high light-throughput and multicolor capability. We characterize the point-spread function in a two-photon microscope and demonstrate fluorescence imaging of GFP labeled neurons in fixed brain samples as imaged with conventional and extended depth of focus two-photon microscopy.


2010 ◽  
Vol 10 (7) ◽  
pp. 1383-1383
Author(s):  
A. Zlotnik ◽  
S. Ben Yaish ◽  
O. Yehezkel ◽  
M. Belkin ◽  
Z. Zalevsky

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