Results 61 to 70 of about 365,569 (360)

VISUAL OUTCOMES OF IMPLANTATION OF MULTIFOCAL INTRAOCULAR LENS WITH ASYMMETRICAL LIGHT DISTRIBUTION

open access: yesAlʹmanah Kliničeskoj Mediciny, 2016
Background: The results of implantation of refractive intraocular lenses (IOL), especially with an inferior segmental near add are of great interest due to advantages of the new lenses over more frequently used diffractive multifocal IOL.
E. N. Mityaeva, I. A. Loskutov
doaj   +1 more source

Exploratory Study on User's Dynamic Visual Acuity and Quality Perception of Impaired Images [PDF]

open access: yesarXiv, 2020
In this paper we assess the impact of head movement on user's visual acuity and their quality perception of impaired images. There are physical limitations on the amount of visual information a person can perceive and physical limitations regarding the speed at which our body, and as a consequence our head, can explore a scene. In these limitations lie
arxiv  

Loss of Foveal Cone Structure Precedes Loss of Visual Acuity in Patients With Rod-Cone Degeneration. [PDF]

open access: yes, 2019
PurposeTo assess the relationship between cone spacing and visual acuity in eyes with rod-cone degeneration (RCD) followed longitudinally.MethodsHigh-resolution images of the retina were obtained using adaptive optics scanning laser ophthalmoscopy from ...
Bensinger, Ethan   +9 more
core  

Visual acuity of dentists in their respective clinical conditions. [PDF]

open access: yes, 2014
OBJECTIVES This study examined the impact of age and magnification on the near visual acuity of dentists in their private practice under simulated clinical conditions. MATERIALS AND METHODS Miniaturized visual tests were fixed in posterior teeth
Eichenberger, Martina   +3 more
core   +1 more source

Electrical stimulation of visual cortex can immediately improve spatial vision [PDF]

open access: yes, 2016
Published in final edited form as:Curr Biol. 2016 July 25; 26(14): 1867–1872. doi:10.1016/j.cub.2016.05.019.SUMMARY We can improve human vision by correcting the optics of our lenses [1, 2, 3].
McClenahan, Laura J.   +3 more
core   +1 more source

Screening for significant refractive error using a combination of distance visual acuity and near visual acuity. [PDF]

open access: yesPLoS ONE, 2015
To explore the effectiveness of using a series of tests combining near visual acuity (NVA) and distance visual acuity (DVA) for large-scale screenings for significant refractive error (SRE) in primary school children.Each participant underwent DVA, NVA ...
Peiyao Jin   +6 more
doaj   +1 more source

Evaluation of visual evoked potentials in post-trauma eyes [PDF]

open access: yes, 2013
AIM: To analyze the visual evoked potentials(VEP)of 189 eyes subjected to traumatic injury, and to explore the feasibility and method to applying VEP technology to the evaluation of visual acuity after eye trauma. METHODS: All the objects were volunteers
Xin Zhou
core   +1 more source

Baseline visual acuity strongly predicts visual acuity gain in patients with diabetic macular edema following anti-vascular endothelial growth factor treatment across trials

open access: yesClinical Ophthalmology, 2016
Pravin U Dugel,1,2 Jost Hillenkamp,3 Sobha Sivaprasad,4,5 Jessica Vögeler,6 Marie-Catherine Mousseau,7 Andreas Wenzel,8 Philippe Margaron,8 Ron Hashmonay,8 Pascale Massin9 1Retinal Consultants of Arizona LTD, Retinal Research Institute LLC, Phoenix,
Dugel PU   +8 more
doaj  

Automated charting of the visual space of insect compound eyes [PDF]

open access: yesarXiv, 2021
This paper describes the automatic measurement of the spatial organization of the visual axes of insect compound eyes, which consist of several thousands of visual units called ommatidia. Each ommatidium samples the optical information from a small solid angle, with an approximately Gaussian-distributed sensitivity (half-width of the order of one ...
arxiv  

Symmetric Models for Visual Force Policy Learning [PDF]

open access: yesarXiv, 2023
While it is generally acknowledged that force feedback is beneficial to robotic control, applications of policy learning to robotic manipulation typically only leverage visual feedback. Recently, symmetric neural models have been used to significantly improve the sample efficiency and performance of policy learning across a variety of robotic ...
arxiv  

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