Results 71 to 80 of about 60,613 (227)

Ticept: Wideband Electrical Properties Tomography by Tissue Composition Assessment With Quantitative 1$$ {}^1 $$H23$$ {}^{23} $$Na39$$ {}^{39} $$K Multinuclear MRI

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a noninvasive method for estimating dielectric properties over a wide frequency range from 50 to 600 MHz. Existing methods are limited in accuracy and provide single‐frequency results. Furthermore, accurate knowledge of dielectric properties becomes more important, since medical device design and safety evaluation ...
Laura J. C. Barendsz, Kemal Sumser, Teresa Gerhalter, Rob M. C. Mestrom, Armin M. Nagel, Margarethus M. Paulides   +5 more
wiley   +1 more source

Bilateral Toric Phakic Intraocular Lens Implantation for Correction of High Myopic Astigmatism in a Patient with Marfan Syndrome with Lens Coloboma: A Case Report

Case Reports in Ophthalmology, 2021
Marfan syndrome (MFS) is known to cause significant refractive error. Treatment options are limited in this condition for correcting refractive error. Clear lens exchange is done in these cases, but complication rates are high.
Bhupesh Singh, Sourabh Sharma, Suchit Dadia, Neha Bharti, Sudhank Bharti   +4 more
doaj   +1 more source

Monovision LASIK in emmetropic presbyopic patients. [PDF]

, 2018
BackgroundTo evaluate the efficacy and patient satisfaction of laser in situ keratomileusis (LASIK) monovision correction in presbyopic emmetropic patients.MethodsA retrospective review of 294 patients who underwent LASIK for monovision was conducted ...
Hannan, Stephen, Peng, Michelle Y, Schallhorn, Julie M, Schallhorn, Steven J, Teenan, David   +4 more
core  

A randomised controlled trial on cross‐linking protocols for the treatment of progressive keratoconus using isoosmolar and hypoosmolar riboflavin with the addition of sterile water in thin corneae

Acta Ophthalmologica, EarlyView.
Abstract Purpose To present the outcomes of a randomised clinical trial for the treatment of progressive keratoconus using different kinds of riboflavin and the addition of sterile water in thin corneae. Methods A randomised study using epithelium‐off corneal cross‐linking (CXL) with continuous UVA irradiance 9 mW/cm2 for 10 min (total fluence 5.4 J ...
Ingemar Gustafsson, Thorbjörg Olafsdottir, Olof Neumann, Dimitrios Bizios, Anders Ivarsen, Jesper Ø. Hjortdal   +5 more
wiley   +1 more source

Global causes of blindness and distance vision impairment 1990–2020: a systematic review and meta-analysis [PDF]

, 2017
Background: Contemporary data on causes of vision impairment and blindness form an important basis for recommendations in public health policies. Refreshment of the Global Vision Database with recently published data sources permitted modeling of cause ...
Aditi Das, Aditi Das, MD, Alain Bron, Alan Morse, Alan Robin, Alex Silvester, Alex Silvester, MD, Anu Mathew, April Ingram, Aries Arditi, Banu Bozkurt, Beatriz Munoz, Billy Hammond, Charlotte Joslin, Dana Reza, David Friedman, David Musch, Donald Budenz, Dwight Stambolian, Feng Cai, Fernando Yaacov Pena, Flavio Hirai, George Lambrou, Gianni Virgili, Gretchen A Stevens, D.Sc, Gretchen Stevens, Gus Gazzard, Hans LIMBURG, Hans Limburg, PhD, Harry Quigley, Hua Gao, Hugh R Taylor, MD, Hugh Taylor, Iva Dekaris, Jaewan Choi, Jaime Tejedor, James Hejtmancik, James Tielsch, Jan van Meurs, Janet Leasher, Janet Serle, Jennifer Lim, Jenny deva, Jill Keeffe, Jinan Saaddine, Joao Furtado, John H Kempen, MD, John Huang, John Kempen, Jonathan Javitt, Jost Jonas, Juan Carlos Silva, Judy Kim, Kaweh Mansouri, Kevin Frick, Konrad Pesudovs, Kovin Naidoo, Kovin Naidoo, PhD, Lalit Dandona, Laura Dreer, Leon Ellwein, Luca Rossetti, Marcela Frazier, Maria Palaiou, Maria V Cicinelli, MD, Maria Vittoria Cicinelli, Mary Elizabeth Hartnett, Maurizio Battaglia Parodi, Miltiadis Tsilimbaris, Minguang He, Moncef Khairallah, Monte Del Monte, Murugesan Raju, Mya Sandar, Nathan Congdon, Nina Tahhan, PhD, Ning-Li Wang, Pamela Sieving, Paolo Lanzetta, Peter Ackland, Peter Ackland, MPhil, Peter Wiedemann, Pradeep Ramulu, Prof Janet Leasher, OD, Prof Jill Keeffe, PhD, Prof Jost B Jonas, MD, Prof Konrad Pesudovs, PhD, Prof Rupert R A Bourne, MD, Prof Serge Resnikoff, MD, Prof Tien Y Wong, PhD, Rajesh Shetty, Rakhi Dandona, Reza Dana, Richard Wormald, Rita S. Sitorus, Robert Casson, Rohit Khanna, Rohit Varma, Ronnie George, Rupert Bourne, Serge Resnikoff, Seth R Flaxman, PhD, Sheila West, Stephen Gichuhi, Tasanee Braithwaite, Tasanee Braithwaite, MPH, Tien Wong, Tueng Shen, Tunde Peto, Usha Chakravarthy, Van Charles Lansingh, Victor Gonzalez, Vinay Nangia, Ya Xing Wang, Yaniv Barkana, Yingfeng Zheng, Zane Rankin   +116 more
core   +6 more sources

Prevalence, associations and characteristics of severe uncorrected refractive error in the Australian National Eye Health Survey

Clinical and Experimental Ophthalmology, 2019
In Australia, nationally representative data of the burden and associations of severe uncorrected refractive error are scarce.
S. Keel, Myra B McGuiness, J. Foreman, J. Scheetz, H. Taylor, M. Dirani   +5 more
semanticscholar   +1 more source

Refractive Error and Axial Length and Their Related Factors in 8-Year-Old Japanese Children: The Yamanashi Adjunct Study of the Japan Environment and Children’s Study (JECS)

Journal of Clinical Medicine, 2023
Purpose: To investigate the distribution of visual acuity, refractive error, and axial length in 8-year-old children who participated in an additional survey in Yamanashi Prefecture of the Japan Environmental Children’s Study (hereafter referred to as ...
Natsuki Okabe, Airi Takahashi, Yumi Shigemoto, Chio Kogure, T. Ooka, Ryoji Shinohara, Sanae Otawa, Anna Kobayashi, Sayaka Horiuchi, Megumi Kushima, Zentaro Yamagata, Kenji Kashiwagi, The Yamanashi Adjunct Study Of The Japan Environme   +12 more
semanticscholar   +1 more source

A review of angle kappa and multifocal intraocular lenses and their effect on visual outcomes

Acta Ophthalmologica, EarlyView.
Abstract Although most patients are satisfied with their vision after multifocal intraocular lens (IOL) implantation, dissatisfaction has been reported for various reasons, including poor visual outcomes and visual disturbances. Many published reports hypothesise that preoperative angle kappa may be an associated factor in patient dissatisfaction ...
Thomas Kohnen, Viswanathan Ramasubramanian, Rajaraman Suryakumar   +2 more
wiley   +1 more source

The uncorrected refractive error challenge

Community Eye Health Journal, 2016
Refractive error affects people of all ages, socio-economic status and ethnic groups. The most recent statistics estimate that, worldwide, 32.4 million people are blind and 191 million people have vision impairment.
Kovin Naidoo, Pirindha Govender , Brien Holden   +2 more
doaj  

Rapid Assessment of Refractive Error, Presbyopia, and Visual Impairment and Associated Quality of Life in Nampula, Mozambique [PDF]

, 2015
Introduction: Uncorrected refractive error is the leading cause of visual impairment worldwide and leads to an impaired quality of life. This study was designed to determine the prevalence of uncorrected refractive error and presbyopia, to assess ...
Chinanyi, Farai, Faria, Cesar, Loughman, James, Naidoo, Kovin S., Nxele, Lindelwa, Ramson, Prasidh, Thompson, Stephen   +6 more
core   +1 more source