Results 11 to 20 of about 2,286,725 (395)
Prevalence of Visual Acuity Loss or Blindness in the US
JAMA ophthalmology, 2021 Key Points Question How many people in the US are living with uncorrectable visual acuity loss or blindness? Findings This bayesian meta-analysis generated an estimate that, in 2017, there were 7.08 million people living with visual acuity loss, of whom ...
A. Flaxman +7 more
semanticscholar +1 more source
Comparison of smartphone based peek visual acuity with Snellen Visual Acuity
Journal of Applied Pharmaceutical Research, 2023 Purpose: To test an alternative method of visual acuity assessment by comparing habitual and best-corrected visual acuity by Snellen and Peek (a visual acuity testing smartphone application).
Nisha Dulani +2 more
doaj +1 more source
Habitual visual acuity and visual acuity threshold demands in Nigerian school classrooms
Scientific Reports, 2022 This study was designed to estimate the burden of blindness and vision impairment in school children, and to determine the proportion of students meeting the visual acuity (VA) demand for their classrooms. From 148 primary and secondary school classrooms
Onyekachukwu Mary-Anne Amiebenomo +3 more
doaj +1 more source
Age-related laryngoscopic visual acuity
African Journal of Emergency Medicine, 2021 Background: Endotracheal intubation by direct laryngoscopy is a mainstay of advanced airway management performed both in the prehospital environment and in the Emergency Department.
Abdul-Maajid Mathews +2 more
doaj +1 more source
Vertical dynamic visual acuity is significantly lower than horizontal dynamic visual acuity
Scientific Reports, 2023 Dynamic visual acuity (DVA) is crucial for the perception of moving objects. While traditional DVA assessment tools predominantly focus on horizontal movements, the evaluation of vertical DVA remains unstandardized.
Aoi Tachihara +5 more
doaj +1 more source
Finely tuned eye movements enhance visual acuity
Nature Communications, 2020 High visual acuity is essential for many tasks, from recognizing distant friends to driving a car. While much is known about how the eye’s optics and anatomy contribute to spatial resolution, possible influences from eye movements are rarely considered ...
J. Intoy, M. Rucci
semanticscholar +1 more source
Indian Journal of Ophthalmology, 2021 Purpose: The aim of this study was to determine habitual visual acuity (HVA) in a large urban cohort in western India and identify factors associated with poor HVA.
Nishant Kumar +3 more
doaj +1 more source
Asymmetries in visual acuity around the visual field
Journal of Vision, 2020 Human vision is heterogeneous around the visual field. At a fixed eccentricity, performance is better along the horizontal than the vertical meridian and along the lower than the upper vertical meridian.
A. Barbot, Shutian Xue, M. Carrasco
semanticscholar +1 more source
Visual acuity after trabeculectomy [PDF]
Vojnosanitetski Pregled, 2005 Background/Aim. In this study we compared the two groups of glaucoma patients who had underwent trabeculectomy, with or without intraoperative application of antimetabolite 5-Fluorouracile (5 FU). Methods. We followed up 50 glaucoma patients (group I) in
Buzarovska-Blaževska Karolina +3 more
doaj +1 more source
VEP estimation of visual acuity: a systematic review
Documenta Ophthalmologica, 2020 Purpose Visual evoked potentials (VEPs) can be used to measure visual resolution via a spatial frequency (SF) limit as an objective estimate of visual acuity.
Ruth Hamilton +8 more
semanticscholar +1 more source