Results 51 to 60 of about 4,948 (216)

Trifocal toric intra-ocular lens implantation in pediatric traumatic cataract

American Journal of Ophthalmology Case Reports, 2020
Purpose: To present the case of a 6-year-old child who presented with a traumatic cataract and was treated with trifocal toric intra-ocular lens implantation.
Lucas M.M. Vianna, Christina R. Prescott, Lívio O. Ferraz   +2 more
doaj   +1 more source

Shack-Hartmann multiple spots with diffractive lenses [PDF]

, 2011
International audienceIn this Letter we aim to bring an understanding to the apparition of multiple spots when using a Shack-Hartmann (SH) wavefront sensor behind diffractive lenses.
Castignoles, Fannie, Chavel, Pierre, Cohen, Gilbert, Lépine, Thierry   +3 more
core   +3 more sources

Through-Focus Vision Performance and Light Disturbances of 3 New Intraocular Lenses for Presbyopia Correction

Journal of Ophthalmology, 2018
Purpose. To compare the through-focus visual performance in a clinical population of pseudophakic patients implanted with two new trifocal intraocular lenses (IOLs) and one extended depth of focus IOL. Methods. Prospective, nonrandomized, examiner-masked
Santiago Escandón-García, Filomena J. Ribeiro, Colm McAlinden, António Queirós, José M. González-Méijome   +4 more
doaj   +1 more source

Revisiting Minimal Solver of Camera Triplets for Incremental Structure‐from‐Motion

The Photogrammetric Record, Volume 41, Issue 193, January–March 2026.
Left: Overview of T2vP, a minimal solver for camera pose estimation requiring as few as six pure 2D correspondences, without relying on three‐view overlap. Right: T2vP successfully registers cameras in challenging scenarios where PnP solvers fail, as three‐view points are insufficient due to large viewing angle discrepancies.
Debao Huang, Rongjun Qin
wiley   +1 more source

Visual Outcomes and Patient Satisfaction After Implantation of Enhanced Versus Standard Monofocal Intraocular Lenses With a Myopic Target Refraction: A Retrospective Comparative Study

Journal of Ophthalmology, Volume 2026, Issue 1, 2026.
Purpose To compare the clinical outcomes of enhanced monofocal IOL (Eyhance) and monofocal IOL (TECNIS) implantation in cataract patients whose target refraction is myopia. Methods This is a retrospective chart review for patients who underwent cataract surgery and whose target refraction is myopia (−3 D).
Kyung-Sun Na, Jiyoung Emily Lee, Phil Kyu Lee, Hyun Seung Kim, Eun Chul Kim, Antonio Benito   +5 more
wiley   +1 more source

Rigid Multiview Varieties

, 2016
The multiview variety from computer vision is generalized to images by $n$ cameras of points linked by a distance constraint. The resulting five-dimensional variety lives in a product of $2n$ projective planes. We determine defining polynomial equations,
Joswig, Michael, Kileel, Joe, Sturmfels, Bernd, Wagner, André   +3 more
core   +1 more source

Linear Global Translation Estimation with Feature Tracks

, 2015
This paper derives a novel linear position constraint for cameras seeing a common scene point, which leads to a direct linear method for global camera translation estimation.
Cui, Zhaopeng, Jiang, Nianjuan, Tan, Ping, Tang, Chengzhou   +3 more
core   +1 more source

Trifocal Relative Pose From Lines at Points

IEEE Transactions on Pattern Analysis and Machine Intelligence, 2023
Presentamos un método para resolver dos problemas mínimos para la estimación relativa de la pose de la cámara a partir de tres vistas, que se basan en tres correspondencias de vista de (i) tres puntos y una línea y el nuevo caso de (ii) tres puntos y dos líneas a través de dos de los puntos. Estos problemas son demasiado difíciles de resolver de manera
Ricardo Fabbri, Timothy Duff, Hongyi Fan, Margaret H. Regan, David da Costa de Pinho, Elias Tsigaridas, Charles W. Wampler, Jonathan D. Hauenstein, Peter Giblin, Benjamin B. Kimia, Anton Leykin, Tomáš Pajdla   +11 more
openaire   +3 more sources

Presbyopia Correction in Lens Replacement Surgery: A Review

Clinical &Experimental Ophthalmology, Volume 53, Issue 6, Page 668-681, August 2025.
ABSTRACT Presbyopia affects approximately 1.8 billion individuals globally, posing significant challenges as life expectancy and near‐vision demands, particularly with mobile phone use, grow. Addressing presbyopia during lens replacement surgery has become a key focus for cataract surgeons, aiming to reduce dependence on corrective eyewear. This review
Benjamin Stern, Damien Gatinel
wiley   +1 more source

Functional Optical Balance in Cataract Surgery: A Review

Optics
Functional Optical Balance (FOB) is a novel personalized strategy for intraocular lens (IOL) selection in cataract surgery, designed to reconcile the trade-off between optical quality and spectacle independence.
Dillan Cunha Amaral, Pedro Lucas Machado Magalhães, Alex Gonçalves Sá, Alexandre Batista da Costa Neto, Flávio Moura Travassos de Medeiros, Milton Ruiz Alves, Jaime Guedes, Ricardo Noguera Louzada   +7 more
doaj   +1 more source