Results 71 to 80 of about 19,203 (283)

NETRA: Interactive Display for Estimating Refractive Errors and Focal Range [PDF]

, 2010
We introduce an interactive, portable, and inexpensive solution for estimating refractive errors in the human eye. While expensive optical devices for automatic estimation of refractive correction exist, our goal is to greatly simplify the mechanism by ...
Ankit Mohan, Hoffman D. M., Lam M. W. Y., Makthal S., Manuel M. Oliveira, Naor M., Ng R., Ramesh Raskar, Tscherning M., Vitor F. Pamplona   +9 more
core   +1 more source

Prevalence and degrees of myopia and hyperopia at Gondar University Hospital Tertiary Eye Care and Training Center, Northwest Ethiopia

Clinical Optometry, 2016
Destaye Shiferaw Alemu, Alemayehu Desalegn Gudeta, Ayanaw Tsega Ferede, Haile Woretaw Alemu Department of Optometry, College of Medicine and Health Sciences, Gondar University, Gondar, Ethiopia Background: Refractive errors are the second and third ...
Shiferaw Alemu D, Desalegn Gudeta A, Tsega Ferede A, Woretaw Alemu H   +3 more
doaj  

Slowing myopia progression with cylindrical annular refractive elements (CARE) spectacle lenses—Year 1 results from a 2‐year prospective, multi‐centre trial

Acta Ophthalmologica, EarlyView.
Abstract Purpose To evaluate the effectiveness of 12 months of spectacle lens wear incorporating cylindrical annular refractive elements (CARE) in slowing myopia progression compared to single vision (SV) spectacle wear. Methods In an ongoing 2‐year prospective, double‐masked, multi‐centre clinical trial, 240 Chinese children aged 6–13 years, spherical
Xiaoqin Chen, Min Wu, Cui Yu, Arne Ohlendorf, Katharina Rifai, Christina Boeck‐Maier, Siegfried Wahl, Youhua Yang, Yi Zhu, Lihua Li, Padmaja Sankaridurg   +10 more
wiley   +1 more source

A truly knotless technique for scleral fixation of intraocular lenses: Two-year results

Indian Journal of Ophthalmology, 2012
Scleral fixated intraocular lens (SFIOL) is a safe and effective option for managing optical aphakia. Suture related complications like suture erosion, suture breakage, endophthalmitis, etc. are unique to SFIOL.
Naresh K Yadav, Vasudha Kemmanu, Mayuri Bhargava, Bhujanga Shetty   +3 more
doaj   +1 more source

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

Two‐year changes of macular choroidal thickness in response to 0.01% atropine eye drops: Results from the myopia outcome study of atropine in children (MOSAIC) clinical trial

Acta Ophthalmologica, EarlyView.
Abstract Purpose To investigate 2‐year changes in macular choroidal thickness (ChT) in children receiving 0.01% atropine eyedrops and its relationship with spherical equivalent refraction (SER) progression and axial length (AL) elongation. Methods A total of 250 myopic children aged 6–16 years (167%–0.01% atropine, 83‐placebo) were enrolled in the ...
Emmanuel Kobia‐Acquah, Gareth Lingham, Daniel Ian Flitcroft, James Loughman   +3 more
wiley   +1 more source

A mathematical model for describing the retinal nerve fiber bundle trajectories in the human eye:Average course, variability, and influence of refraction, optic disc size and optic disc position [PDF]

, 2012
Previously we developed a mathematical model for describing the retinal nerve fiber bundle trajectories in the superior-temporal and inferior-temporal regions of the human retina, based on traced trajectories extracted from fundus photographs.
Jansonius, Nomdo M., Nevalainen, Jukka, Paetzold, Jens, Schiefer, Julia, Schiefer, Ulrich   +4 more
core   +2 more sources

Prevalence of visual impairment and refractive errors in an urban area of Mexico [PDF]

International Journal of Ophthalmology, 2019
AIM: To determine the distribution of refractive errors in a school-age population in Quintana Roo (Mexico) in the framework of an international cooperation campaign for the prevention of blindness. METHODS: A sample of 2647 school-age children (ranging
Isabel Signes-Soler, David P Piñero, Milagro Inés Murillo, Silvia Tablada   +3 more
doaj   +1 more source

Influence of outdoor time on the spherical equivalent and axial length in childhood myopia: A meta‐analysis

Acta Ophthalmologica, EarlyView.
Abstract This meta‐analysis investigates the effectiveness of outdoor activities in reducing the onset of myopia in children and adolescents by analysing changes in axial elongation and spherical equivalent refractive error. Following PRISMA guidelines and registered in PROSPERO (CRD42024592971), the study included randomized controlled trials (RCTs ...
Clara Martinez‐Perez, Miguel Angel Sanchez‐Tena, José‐María Sánchez‐González, Cesar Villa‐Collar, Cristina Alvarez‐Peregrina   +4 more
wiley   +1 more source

Development of Contact Lens Suitability System (ClenSyst) [PDF]

, 2009
This paper proposes a system that can determine the suitability of contact lenses usage.The aim of this work is to provide a decision making system by using the application of fuzzy logic to analyze and decide the appropriate type of contact lenses based
Che Hamzah, Jemaima, Muhammed Hafiza, Syaratul Ain, Razak, Syariza, Sahari @ Ashaari, Noraidah   +3 more
core   +1 more source