Results 11 to 20 of about 13,805 (157)

Electroretinography and Gene Expression Measures Implicate Phototransduction and Metabolic Shifts in Chick Myopia and Hyperopia Models

open access: yesLife, 2021
The Retinal Ion-Driven Fluid Efflux (RIDE) model theorizes that phototransduction-driven changes in trans-retinal ion and fluid transport underlie the development of myopia (short-sightedness).
Nina Riddell   +2 more
doaj   +1 more source

Effect of induced hyperopia on fall risk and Fourier transformation of postural sway [PDF]

open access: yesPeerJ, 2019
Background and Purpose Fall accidents are a social challenge in Korea and elsewhere. Most previous studies have focused on the effects of reduced visual acuity due to myopia on falls and body balance.
Byeong-Yeon Moon   +3 more
doaj   +2 more sources

A pilot study: lenticule quality of hyperopic small incision lenticule extraction (SMILE) in rabbits

open access: yesBMC Ophthalmology, 2020
Background To evaluate lenticule surface characteristics of small incision lenticule extraction (SMILE) for hyperopia correction in rabbits. Methods The left and right eyes of 8 rabbits were divided into two groups.
Yu Zhao   +4 more
doaj   +1 more source

Flash Electroretinography as a Measure of Retinal Function in Myopia and Hyperopia: A Systematic Review

open access: yesVision, 2023
Refractive errors (myopia and hyperopia) are the most common visual disorders and are severe risk factors for secondary ocular pathologies. The development of refractive errors has been shown to be associated with changes in ocular axial length ...
Sania Zahra   +3 more
doaj   +1 more source

Bilateral posterior microphthalmos associated with papillomacular fold and severe hyperopia [PDF]

open access: yesBatna Journal of Medical Sciences, 2022
Posterior microphthalmos with papillo-macular fold is a rare disorder that involves both eyes without other ocular or systemic abnormalities, it is characterized by a short posterior segment with a normal anterior segment.
Aicha Lakhdar Fouatih, Amine Hamma
doaj   +1 more source

Comparison of lens refractive parameters in myopic and hyperopic eyes of 6–12-year-old children

open access: yesFrontiers in Medicine, 2022
Background/aimsTo evaluate the influence of cycloplegia on lens refractive parameters in 6–12-year-old children with myopia and hyperopia for exploring the pathogenesis of myopia.MethodsOne hundred eyes of 100 patients (50 boys) were included.
Jianming Shang   +14 more
doaj   +1 more source

Myopia prevalence in school-aged children in Garki District of Abuja, Nigeria

open access: yesAfrican Vision and Eye Health, 2022
Background: Prevalence of myopia is increasing globally, hence it poses a significant public health risk due to the association of high myopia with debilitating eye disorders.
Tope R. Akinbinu   +2 more
doaj   +1 more source

Corneal visualization Scheimpflug technology evaluates corneal biomechanical properties in children with different refractive states

open access: yesDi-san junyi daxue xuebao, 2021
Objective To evaluate the corneal biomechanical parameters in myopic, hypermetropic and emmetropic eyes using corneal visualization Scheimpflug technology (CorVis ST).
LI Fang   +4 more
doaj   +1 more source

Adequacy of the Fogging Test in the Detection of Clinically Significant Hyperopia in School-Aged Children

open access: yesJournal of Ophthalmology, 2019
Purpose. To evaluate the efficacy of the “fogging test,” performed with a +2 diopters (D) lens, in the exclusion of clinically significant hyperopia in school-aged children. Methods.
João Esteves Leandro   +7 more
doaj   +1 more source

Assessment of Changes in Cyliary Muscle in Patients with Hypermetropy Using Mathematical Modeling Methods

open access: yesActa Biomedica Scientifica, 2019
Background. Age-related decline in accommodation in patients with emmetropia, myopia and hyperopia is characterized by multidirectional changes in the thickness of the ciliary muscle and the configuration of the inner apex of the ciliary body.
A. G. Shchuko   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy