Results 61 to 70 of about 9,274 (203)

Peripheral refraction and higher-order aberrations with cycloplegia and fogging lenses using the BHVI-EyeMapper

Journal of Optometry, 2016
Purpose: To determine if a fogging lens ameliorates accommodative effects driven by the closed-view design of the BHVI-EyeMapper (EM) instrument. We compared cycloplegic refraction and higher-order aberration measurements of the EM with those obtained ...
Ravi Chandra Bakaraju, Cathleen Fedtke, Klaus Ehrmann, Darrin Falk, Varghese Thomas, Brien Anthony Holden   +5 more
doaj   +1 more source

Beijing Pinggu Childhood Eye Study: The Baseline Refractive Characteristics in 6- to 12-Year-Old Chinese Primary School Students

Frontiers in Public Health, 2022
PurposeTo report the design and baseline data of a 3-year cohort study in Beijing Pinggu District primary school students in China after COVID-19.MethodsNoncycloplegic and cycloplegic spherical equivalent refraction (SER) were measured, ocular biometry ...
Yan Li, Yi Xing, Chunlin Jia, Jiahui Ma, Xuewei Li, Jingwei Zhou, Chenxu Zhao, Haijun Zhang, Lu Wang, Weihong Wang, Jia Qu, Mingwei Zhao, Kai Wang, Xin Guo   +13 more
doaj   +1 more source

Prevalence and risk factors for myopia and other refractive errors in an adult population in southern India. [PDF]

, 2018
PURPOSE: To investigate prevalence and risk factors for myopia, hyperopia and astigmatism in southern India. METHODS: Randomly sampled villages were enumerated to identify people aged ≥40 years.
Bourne, Chang, Chylack, Diez Ajenjo, Eye Disease Prevalence Group, Foster, Gupta, Hyman, Hysi, Jones-Jordan, Kim, Krishnaiah, Lee, Liang, Lim, McCarty, Morgan, Morgan, Nangia, Pan, Pan, Pan, Pan, Pan, Pan, Pesudovs, Raju, Robin, Rose, Saw, Saxena, Tarczy-Hornoch, Vashist, Verhoeven, Williams, Wong, Wu, Xu   +37 more
core   +1 more source

Exploring the Impact of Refractive and Ocular Residual Astigmatism on Stereopsis After Photorefractive Keratectomy in Patients With Myopic Astigmatism

Journal of Ophthalmology, Volume 2026, Issue 1, 2026.
Background To investigate the impact of refractive and ocular residual astigmatism (ORA) on stereopsis after photorefractive keratectomy (PRK) for the correction of myopic astigmatism. Methods This prospective observational study was conducted on patients who underwent PRK for the treatment of myopia and myopic astigmatism using a Schwind Amaris 1050RS
Faezeh Fayaz, Mohsen Pourazizi, Payam Nabovati, Alireza Peyman, Pegah Noorshargh, Kofi Asiedu   +5 more
wiley   +1 more source

Effect of Corneal Incision Features on Corneal Endothelial Cell, Astigmatism, and Higher‐Order Aberrations After Implantable Collamer Lens Implantation

Journal of Ophthalmology, Volume 2026, Issue 1, 2026.
Purpose This study evaluated the impact of clear corneal incision (CCI) morphology on corneal endothelial cell density (ECD), astigmatism, and higher‐order aberrations (HOAs) following implantable collamer lens (ICL) implantation. Design Prospective study. Methods Sixty‐five patients (65 eyes) undergoing ICL implantation were included.
I-Chun Lin, Mingrui Cheng, Mingwei Li, Yinjie Jiang, Guanghan Xu, Yadi Lei, Zhiwei Mao, Rui Ning, Xun Chen, Xiaoying Wang, Shweta Negi   +10 more
wiley   +1 more source

Relationship between higher-order wavefront aberrations and natural progression of myopia in schoolchildren

Scientific Reports, 2017
This study investigated the relationship between higher-order aberrations (HOAs) and myopia progression as well as axial elongation in schoolchildren. We examined cycloplegic refraction, axial length, and wavefront aberrations prospectively in 71 myopic ...
Takahiro Hiraoka, Junko Kotsuka, Tetsuhiko Kakita, Fumiki Okamoto, Tetsuro Oshika   +4 more
doaj   +1 more source

Comparison of objective refraction in darkness to cycloplegic refraction: a pilot study [PDF]

Clinical and Experimental Optometry, 2016
The aim was to assess non-cycloplegic objective refraction in darkness using an open-field auto-refractor, and furthermore to compare it with distance cycloplegic subjective refraction and distance cycloplegic retinoscopy in the light, in children and young adults.Twenty-three, visually-normal, young-adults (46 eyes) ages 23 to 31 years, and five ...
Balamurali, Vasudevan, Kenneth J, Ciuffreda, Kelly, Meehan, Dejana, Grk, Misty, Cox   +4 more
openaire   +2 more sources

Agreement of wavefront-based refraction, dry and cycloplegic autorefraction with subjective refraction

Journal of Optometry, 2022
To evaluate the agreement of dry, and cycloplegic autorefraction and wavefront-based refraction with subjective refraction.83 subjects aged 19-57 years were included in this cross-sectional study. Refractive status was determined using four methods including subjective refraction, wavefront-based refraction, dry and cycloplegic autorefraction ...
Bamdad, Shahram, Momeni-Moghaddam, Hamed, Abdolahian, Milad, Piñero, David P.   +3 more
openaire   +3 more sources

Blue Light Defocus Induces A Positive Effect on Refractive Status and Ocular Health: A Randomized Crossover Trial

Global Challenges, Volume 9, Issue 12, December 2025.
This graphical abstract illustrates that varying degrees of intensity of defocus are associated with choroidal thickness, myopic defocus shift, and manifestations of visual fatigue, along with alterations in accommodation and convergence functions. Preliminary evidence suggests that blue light defocus technology could serve as a potential intervention ...
Jinfang Wu, Ze‐Hua Xu, Yuanyuan Miao, Xinyao Zheng, Lan Yang, Cong Wang, Jason C. Yam, Zi‐Bing Jin   +7 more
wiley   +1 more source

Myopia control with a novel peripheral gradient soft lens and orthokeratology: a 2-year clinical trial [PDF]

, 2015
Objective. To evaluate the degree of axial elongation with soft radial refractive gradient (SRRG) contact lenses, orthokeratology (OK), and single vision (SV) spectacle lenses (control) during a period of 1 year before treatment and 2 years after ...
Armengol, Jesús, González-Méijome, José Manuel, Morales, Hari, Pauné, Jaume, Quevedo, L., Ribeiro, Miguel António Faria   +5 more
core   +5 more sources