Results 61 to 70 of about 166,297,977 (194)

Method for extending the depth of focus in X-ray microscopy

Optics Express, 2017
Transmission X-ray microscopy (TXM) is a powerful, nondestructive and three-dimensional imaging tool that has been applied in many fields. However, the ability to image large size samples using high-resolution TXM is restricted due to a limited depth of focus (DOF).
Fahu, Li, Yong, Guan, Ying, Xiong, Xiaobo, Zhang, Gang, Liu, Yangchao, Tian   +5 more
openaire   +2 more sources

Clinical Outcomes, Contrast Sensitivity, Reading Performance and Patient Satisfaction Following Bilateral Implantation of AT LARA 829MP EDoF IOLs

Clinical Ophthalmology, 2021
Sri Ganesh, Sheetal Brar, Nikhil RP, Dishitha Rathod Department of Phaco-Refractive Surgery, Nethradhama Super Speciality Eye Hospital, Bangalore, Karnataka, IndiaCorrespondence: Sheetal BrarNethradhama Superspeciality Eye Hospital, 256/14, Kanakapura ...
Ganesh S, Brar S, RP N, Rathod D
doaj  

Perception of relative depth interval : Systematic biases in perceived depth [PDF]

, 2012
Given an estimate of the binocular disparity between a pair of points and an estimate of the viewing distance, or knowledge of eye position, it should be possible to obtain an estimate of their depth separation.
Hibbard, Paul Barry, Harris, Julie, Adrien Chopin, Paul B. Hibbard, Zeiner, Katharina Maria, Katharina Zeiner, Hibbard, Paul B, Chopin, Adrien, Harris, Julie M, Julie M. Harris, Zeiner, Katharina   +10 more
core   +1 more source

Preliminary outcomes of a new extended depth-of-focus intraocular lens: prospective study after bilateral implantation

, 2021
In the extended depth-of-focus (EDoF) intraocular lens (IOL) technology, the focus is extended longitudinally improving the range of vision from far to intermediate, creating a more natural and smoother defocus curve.
Spadea, Leopoldo, Giannico, Maria Ilaria, Formisano, Martina, Ludovico Alisi, Leopoldo Spadea, Martina Formisano, Alisi, Ludovico, Maria Ilaria Giannico   +7 more
core   +1 more source

Extended depth of focus lens implantation after radial keratotomy

Clinical Ophthalmology, 2019
Brandon J Baartman,1 Kayla Karpuk,1 Bradley Eichhorn,2 Tanner J Ferguson,2 Ramu G Sudhagoni,3 John P Berdahl,1 Vance M Thompson11Vance Thompson Vision, Sioux Falls, SD, USA; 2University of South Dakota School of Medicine, Vermillion, SD, USA; 3Public ...
Baartman BJ, Karpuk K, Eichhorn B, Ferguson TJ, Sudhagoni RG, Berdahl JP, Thompson VM   +6 more
doaj  

Mix-­and­-match Implantation of Multifocal and Extended Depth of Focus IOLs

Oftalʹmologiâ
Purpose: Analysis of results of combined implantation of non­diffractive IOL with extended depth of focus and multifocal IOL.Materials and methods. The study included 40 patients (80 eyes) after cataract phacoemulsification or clear lens removal with a ...
K. B. Pershin, N. F. Pashinova, А. Yu. Tsygankov, E. A. Antonov, I. V. Kosova, L. V. Batalina   +5 more
doaj   +1 more source

Diffractive infrared lens with extended depth of focus

, 2007
An infrared imaging lens that produces beams with long focal depth while preserving the entire aperture for full light capturing and high transverse resolution is presented.
Yang, Jame J, Liu, Zhiqiang, Wang, Michael R, Flores, Angel   +3 more
core   +1 more source

Rational filter design for depth from defocus [PDF]

, 2012
The paper describes a new, simple procedure to determine the rational filters that are used in the depth from defocus (DfD) procedure previously researched by Watanabe and Nayar [4].
Joseph Raj, Alex Noel, Staunton, Richard C., Richard C. Staunton, Alex Noel Joseph Raj   +3 more
core   +1 more source

The Influence of the Level of Monovision upon Early Outcomes Following the Bilateral Implantation of an Enhanced Monovision Intraocular Lens

Vision
This article provides an assessment of the impact of different levels of monovision upon early visual outcomes and quality of vision (QoV) following the bilateral implantation of enhanced monovision intraocular lenses (IOLs).
Richard N. McNeely, Stephen Stewart, Niraj Mandal, Salissou Moutari, Allon Barsam, Jonathan E. Moore   +5 more
doaj   +1 more source

Extended depth-of-focus microscopy via constrained deconvolution

Journal of Biomedical Optics, 2007
We derive a method for extended depth-of-focus imaging, i.e., a method to render a 2-D image of a thick specimen, such that all the structures within the specimen appear in focus and with greatly increased contrast. We acquire a single image while moving the specimen through focus.
José-Angel, Conchello, Michael E, Dresser   +1 more
openaire   +2 more sources