Results 71 to 80 of about 2,109,292 (261)
Preliminary study on visual recognition under low visibility conditions caused by artificial dynamic smog [PDF]
International Journal of Ophthalmology, 2018 AIM: To quantitatively evaluate the effect of a simulated smog environment on human visual function by psychophysical methods. METHODS: The smog environment was simulated in a 40×40×60 cm3 glass chamber filled with a PM2.5 aerosol, and 14 subjects with ...
Xu-Hong Zhang +8 more
doaj +1 more source
High visual acuity revealed in dogs. [PDF]
PLoS ONE, 2017 Humans have selectively bred and used dogs over a period of thousands of years, and more recently the dog has become an important model animal for studies in ethology, cognition and genetics.
Olle Lind +4 more
doaj +1 more source
An assessment of the iPad as a testing platform for distance visual acuity in adults
BMJ Open, 2013 Objectives Visual acuity is a common measurement in general practice, and the advent of new technology such as tablet computers offers a change in the way in which these tests are delivered.
Joanna Black +6 more
semanticscholar +1 more source
Optical performance of a new design of trifocal intraocular lens based on the Devil's diffractive lens [PDF]
arXiv, 2023 In this work, we propose a new diffractive trifocal intraocular lens design with focus extension, conceived to provide a high visual performance at intermediate distances. This design is based on a fractal structure known as the "Devil's staircase". To assess its optical performance, numerical simulations have been performed with a ray tracing program ...
arxiv
Clinical Ophthalmology, 2016 Daniel H Chang Empire Eye and Laser Center, Bakersfield, CA, USA Purpose: The aim of the study is to evaluate the visual acuity and patient satisfaction at varied distances under photopic and mesopic lighting conditions in patients bilaterally ...
Chang DH
doaj
Frontiers in Public HealthPurposeThis study aimed to explore the effects of additional visual tasks in physical exercise on the vision and balance ability of children, and to verify whether children’s vision mediated the influence of physical exercise on their balance ability ...
Rongbin Yin +5 more
doaj +1 more source
Visual Acuity Development and Plasticity in the Absence of Sensory Experience
Journal of Neuroscience, 2013 Visual circuits mature and are refined by sensory experience. However, significant gaps remain in our understanding how deprivation influences the development of visual acuity in mice.
E. Kang +5 more
semanticscholar +1 more source
Differential visual acuity – A new approach to measuring visual acuity
Journal of Optometry, 2020 A novel type of acuity measurement, which we refer to as 'differential acuity', requires the observer to identify one unique target among three others which are identical. This is a proof of concept study aimed to determine if differential acuity is equivalent to standard measures of recognition acuity.To create a range of visual acuity, vision was ...
Elizabeth L. Irving +2 more
openaire +3 more sources
Meta-analysis of LCPUFA Supplementation of Infant Formula and Visual Acuity
Pediatrics, 2013 BACKGROUND AND OBJECTIVE: Long-chain polyunsaturated fatty acids (LCPUFAs) are hypothesized to affect visual acuity development in infants. Randomized controlled trials (RCTs) have been conducted to assess whether supplementation of LCPUFAs of infant ...
Ahmad Qawasmi +2 more
semanticscholar +1 more source
Are we testing visual acuity adequately?
Community Eye Health Journal, 2018 Visual field testing has benefited from advances in computerised technology and is considered highly accurate and reliable, whereas visual acuity testing still relies on the examiner to apply their best judgement. Is it time to reconsider?
Eytan Blumenthal, Michael Mimouni
doaj