Results 1 to 10 of about 166,297,977 (194)

Inverse Designed Metalenses with Extended Depth of Focus [PDF]

ACS Photonics, 2020
We design, fabricate and characterize a cylindrical metasurface lens operating at — 625nm with a depth of focus exceeding that of an ordinary lens using adjoint optimization-based inverse electromagnetic design.
Raphaël Pestourie, Steven G Johnson, Elyas Bayati   +2 more
exaly   +6 more sources

Designing high-efficiency extended depth-of-focus metalens via topology-shape optimization

Nanophotonics, 2022
Longitudinal optical field modulation is of critical importance in a wide range of applications, including optical imaging, spectroscopy, and optical manipulation.
Zheng Yuhan, Xu Mingfeng, Pu Mingbo, Zhang Fei, Sang Di, Guo Yinghui, Li Xiong, Ma Xiaoliang, Luo Xiangang   +8 more
doaj   +2 more sources

Visualization of Ray Propagation through Extended Depth-of-Focus Intraocular Lenses

Diagnostics, 2022
Extended depth-of-focus (EDoF) presbyopia-correcting intraocular lens (IOL) models differ in their optical design and performance. In the laboratory, we compared the ray propagation and light intensity profiles of four IOLs: the non-diffractive AcrySof ...
Isabella D. Baur, Gerd U. Auffarth, Weijia Yan, Grzegorz Łabuz, Ramin Khoramnia   +4 more
doaj   +3 more sources

Comparison of Outcomes of Non-diffractive Extended Depth of Focus Intraocular Lens and Diffractive Extended Depth of Focus Intraocular Lens. [PDF]

Cureus
Background Extended depth of focus (EDOF) intraocular lenses (IOLs) are designed to provide spectacle-free vision across distances. EDOF IOLs can be categorized as diffractive, e.g., Symfony (Abbott Medical Optics, Santa Ana, CA), or non-diffractive, e.g., Vivity (Alcon Inc., Geneva, Switzerland). Non-diffractive and diffractive EDOF technologies offer
Vora SJ, Ebenezar A, Chaitanya B, Jingar BR.   +3 more
europepmc   +3 more sources

Evaluating the effects of trifocals and extended depth of focus intraocular lens implantation on stereopsis and contrast sensitivity in cataract patients [PDF]

Indian Journal of Ophthalmology
Purpose: To compare the effects of trifocal and extended depth of focus (EDOF) intraocular lenses (IOLs) on stereopsis and contrast sensitivity following cataract surgery.
B V Pradeep, Priyanka R Pujari, Sheetal Madalagi, R Krishnaprasad   +3 more
doaj   +2 more sources

On the extended depth of focus algorithms for bright field microscopy [PDF]

Micron, 2001
Microscopes offer a limited depth of focus which precludes the observation of a complete image of a three-dimensional (3D) object in a single view. Investigations, by a variety of researchers, have led to the development of extended depth of focus algorithms for serial optical slices of microscopic 3D objects in recent years.
Antonio G Valdecasas, David Marshall
exaly   +3 more sources

Visual function comparison of a non-diffractive extended depth-of-focus and an enhanced monofocal intraocular lens sharing the same platform [PDF]

Scientific Reports
This study compared the clinical outcomes and optical characteristics of the TECNIS Eyhance (EH; Johnson & Johnson Vision, Santa Ana, CA, USA) enhanced monofocal and the TECNIS PureSee (PS; Johnson & Johnson Vision) non-diffractive extended-depth-of ...
Hyeck-Soo Son, Dong Gyu Na, Kyungmin Koh, Gerd U. Auffarth, Grzegorz Łabuz   +4 more
doaj   +2 more sources

Ray Visualization and Through-Focus Optical Quality of Diffractive Enhanced Monofocal and Extended-Depth-of-Focus Intraocular Lenses [PDF]

Clinical Ophthalmology
Isabella Diana Baur,1,2 Ramin Khoramnia,1 Hyeck-Soo Son,1 Gerd Uwe Auffarth,1 Grzegorz Łabuz1 1David J Apple Center for Vision Research, Department of Ophthalmology, University of Heidelberg, Heidelberg, Germany; 2Augsburg University Hospital,
Baur ID, Khoramnia R, Son HS, Auffarth GU, Łabuz G   +4 more
doaj   +2 more sources

Visual performance, light distortion and patient reported outcomes with a new bi-aspheric non-diffractive extended depth of focus intraocular lens

Frontiers in Medicine
BackgroundTo evaluate refractive, visual, and patient-reported outcomes three months after bilateral implantation of a novel bi-aspheric, non-diffractive extended depth of focus (EDOF) intraocular lens (IOL) using PhaseRing technology to achieve good ...
Santiago Tañá-Sanz, Pedro Tañá-Sanz, Belén Elvira-Giner, Paz Orts-Vila, Pedro Tañá-Rivero   +4 more
doaj   +3 more sources

Optical and Clinical Outcomes of an Isofocal Intraocular Lens vs. a Monofocal Standard Lens

Life, 2023
The aim of this study is to evaluate the results obtained on the optical bench and clinically with an isofocal lens (ISOPure, BVI medical, Belgium) to compare them to a standard monofocal one (MicroPure, BVI medical, Belgium).
Lidia Pérez-Sanz, Veronica Gonzalez-Fernandez, José Antonio Gómez-Pedrero, César Albarrán-Diego, María García-Montero, Nuria Garzón   +5 more
doaj   +1 more source