Results 71 to 80 of about 3,261,865 (370)

Refractive errors among children, adolescents and adults attending eye clinics in Mexico [PDF]

International Journal of Ophthalmology, 2017
AIM: To assess the proportion of refractive errors in the Mexican population that visited primary care optometry clinics in fourteen states of Mexico. METHODS: Refractive data from 676 856 patients aged 6 to 90y were collected from optometry clinics in ...
Francisco Gomez-Salazar, Abraham Campos-Romero, Humberto Gomez-Campaña, Cinthia Cruz-Zamudio, Mariano Chaidez-Felix, Nidia Leon-Sicairos, Jorge Velazquez-Roman, Hector Flores-Villaseñor, Secundino Muro-Amador, Alma Marlene Guadron-Llanos, Javier J. Martinez-Garcia, Joel Murillo-Llanes, Jaime Sanchez-Cuen, Alejando Llausas-Vargas, Gerardo Alapizco-Castro, Ana Irineo-Cabrales, Enrique Graue-Hernandez   +16 more
doaj   +1 more source

Prevalence and predictors of refractive error and spectacle coverage in Nakuru, Kenya: a cross-sectional, population-based study.

, 2013
A cross-sectional study was undertaken in Nakuru, Kenya to assess the prevalence of refractive error and the spectacle coverage in a population aged ≥50 years.
Bastawrous, Andrew, Foster, Allen, Kuper, Hannah, Mathenge, Wanjiku   +3 more
core   +1 more source

Construction of hyperthermostable d‐allulose 3‐epimerase from Arthrobacter globiformis M30 using the sequence information from Arthrobacter psychrolactophilus

FEBS Open Bio, EarlyView.
d‐Allulose can be produced from d‐fructose by d‐allulose 3‐epimerase. Based on sequence homology information, we successfully engineered thermostable mutants with the protein engineering method. By integrating positive mutations, we constructed an enzyme that exhibits hyperthermostability without a loss in the activity.
Kensaku Shimada, Kouhei Ohtani, Pushpa Kiran Gullapalli, Kazuhiko Ishikawa   +3 more
wiley   +1 more source

Hybrid refractive holographic single vision spectacle lenses

Journal of the European Optical Society-Rapid Publications, 2019
In this contribution, we investigate hybrid single vision spectacle lenses (SVSLs) consisting of holographic optical elements (HOEs) embedded into a refractive lens.
Jannik M. Trapp, Toufic G. Jabbour, Gerhard Kelch, Thomas Pertsch, Manuel Decker   +4 more
doaj   +1 more source

Studying the factors related to refractive error regression after PRK surgery

BMC Ophthalmology, 2018
BackgtoundPhotorefractive keratectomy (PRK) is used for a wide range of refractive errors such as low to moderate myopia, hyperopia and astigmatism. While many improvements have been made in laser application and accuracy as well as the modes of corneal ...
M. Naderi, S. Sabour, S. Khodakarim, F. Daneshgar   +3 more
semanticscholar   +1 more source

Associations with photoreceptor thickness measures in the UK Biobank. [PDF]

, 2019
Spectral-domain OCT (SD-OCT) provides high resolution images enabling identification of individual retinal layers. We included 32,923 participants aged 40-69 years old from UK Biobank.
Aslam, Tariq, Balaskas, Konstantinos, Barman, Sarah A, Barrett, Jenny H, Bishop, Paul, Blows, Peter, Bunce, Catey, Carare, Roxana O, Chakravarthy, Usha, Chan, Michelle, Chua, Sharon YL, Consortium, UK Biobank Eye Vision, Crabb, David P, Cumberland, Philippa M, Day, Alexander, Desai, Parul, Dhillon, Baljean, Dick, Andrew D, Egan, Cathy, Ennis, Sarah, Foster, Paul J, Fruttiger, Marcus, Gallacher, John EJ, Garway-Heath, David F, Gibson, Jane, Gore, Dan, Guggenheim, Jeremy A, Hammond, Chris J, Hardcastle, Alison, Harding, Simon P, Hogg, Ruth E, Hysi, Pirro, Keane, Pearse A, Khaw, Sir Peng T, Khawaja, Anthony P, Lascaratos, Gerassimos, Lotery, Andrew J, Macgillivray, Tom, Mackie, Sarah, Martin, Keith, Mcgaughey, Michelle, Mcguinness, Bernadette, Mckay, Gareth J, Mckibbin, Martin, Mitry, Danny, Moore, Tony, Morgan, James E, Muthy, Zaynah A, O'Sullivan, Eoin, Owen, Chris G, Patel, Praveen J, Paterson, Euan, Peto, Tunde, Petzold, Axel, Rahi, Jugnoo S, Reisman, Charles, Rudnicka, Alicja R, Self, Jay, Sivaprasad, Sobha, Steel, David, Stratton, Irene, Strouthidis, Nicholas, Sudlow, Cathie, Tapp, Robyn, Thaung, Caroline, Thomas, Dhanes, Trucco, Emanuele, Tufail, Adnan, Vernon, Stephen A, Viswanathan, Ananth C, Vitart, Veronique, Williams, Cathy, Williams, Katie, Woodside, Jayne V, Yang, Qi, Yates, Max M, Yip, Jennifer, Zheng, Yalin   +77 more
core   +10 more sources

Biophysical characterization and ion transport with cell‐based and proteoliposome reconstitution assays of invertebrate K+‐Cl− cotransporters

FEBS Open Bio, EarlyView.
The K+‐Cl− cotransporters (KCCs) facilitate the symport of ions across the plasma membrane. They participate in physiological processes including neuronal regulation. Here, we characterized KCCs from Drosophila and Hydra vulgaris. Comparative analyses of transporters provide insights into the mechanism of KCC ion transport, regulation, and evolution ...
Satoshi Fudo, Marina Verkhovskaya, Coralie Di Scala, Claudio Rivera, Tommi Kajander   +4 more
wiley   +1 more source

Prevalence and associated factors of refractive error among adults in South Ethiopia, a community-based cross-sectional study.

PLoS ONE
IntroductionThe increasing prevalence of refractive error has become a serious health issue that needs serious attention. However, there are few studies regarding the prevalence and associated factors of refractive error at the community level in ...
Marshet Gete Abebe, Abiy Maru Alemayehu, Minychil Bantihun Munaw, Mikias Mered Tilahun, Henok Biruk Alemayehu   +4 more
doaj   +1 more source

Refractive Error Among School Going Children in Solukhumbu, Nepal

Nepalese Medical Journal, 2020
Introduction: Reduced vision among school-going children is a global public health problem and uncorrected refractive error, the main causative factor is most prevalent in under-developed countries.
Ang Tshering Lama Sherpa, Mingmar Gyalzen Sherpa, Pushpa Babu Basnet, Mingmar Chhiring Sherpa   +3 more
doaj   +1 more source

Refractive error study in young subjects: results from a rural area in Paraguay [PDF]

, 2017
AIM: To evaluate the distribution of refractive error in young subjects in a rural area of Paraguay in the context of an international cooperation campaign for the prevention of blindness.
Estrella Lumeras, Miguel Ángel, Hernández-Verdejo, José Luis, Piñero, David P., Signes-Soler, Isabel, Tomás Verduras, Elena   +4 more
core   +5 more sources