Results 31 to 40 of about 83,664 (304)

The joint contributions of saccades and ocular drift to repeated ocular fixations

open access: yesVision Research, 2001
We measured the joint contributions of different sized saccades and ocular drift to overall performance in an alternating fixation task. Subjects repeatedly shifted fixation between the centres of a pair of bars of width 2 degrees -2 arc min, either mentally selected or electronically cut from a stationary sine grating display.
Hamstra, S.J, Sinha, T, Hallett, P.E
openaire   +2 more sources

Aphakia without capsular support: a nonsystematic review [PDF]

open access: yesRevista Brasileira de Oftalmologia
This review discusses various surgical techniques for correcting aphakia in patients without adequate capsular support, focusing on lens implantation methods and their associated outcomes.
Victor Dias Bergamasco   +3 more
doaj   +1 more source

Impact of tear metrics on the reliability of perimetry in patients with dry eye.

open access: yesPLoS ONE, 2019
BackgroundThe application of artificial tears before performing perimetry can improve the reliability and results of perimetry in patients with glaucoma and dry eye (DE).
Hideto Sagara   +5 more
doaj   +1 more source

Ocular Volumetry Using Fast High-Resolution MRI during Visual Fixation [PDF]

open access: yesAmerican Journal of Neuroradiology, 2012
Volumetry may be useful for evaluating treatment response and prognosis of intraocular lesions. Phantom, volunteer, and patient studies were performed to determine whether ocular MR volumetry is reproducible.Half-Fourier single-shot RARE and FSPGR sequences at 1.5T with a 76-mm-diameter surface coil were optimized to obtain still ocular images ...
K, Tanitame   +9 more
openaire   +2 more sources

Can ocular fixations modulate the perception of a bistable logo?

open access: yesGrafica: Documents de Disseny Gràfic
Bistable logos accept two different interpretations, where each interpretation can be conditioned by the area of the image that is being observed. Thus, ocular fixations can affect their final perception.
Guillermo Rodríguez-Martínez
doaj   +1 more source

Correlation Between Physiological and Performance-Based Metrics to Estimate Pilots' Cognitive Workload

open access: yesFrontiers in Psychology, 2021
This paper discusses the utilization of pilots' physiological indications such as electroencephalographic (EEG) signals, ocular parameters, and pilot performance-based quantitative metrics to estimate cognitive workload.
P. Archana Hebbar   +5 more
doaj   +1 more source

A simple saccadic reading test to assess ocular motor function in cerebellar ataxia. [PDF]

open access: yesPLoS ONE, 2018
Cerebellar ataxia is a neurological disorder due to dysfunction of the cerebellum that affects coordination of fine movement, gait, and balance. Although ataxic patients commonly exhibit abnormal eye movement and have difficulties with saccadic reading ...
Angela Jinsook Oh   +5 more
doaj   +1 more source

Focused and defocused retinal images with Bessel and axicon pupil functions. [PDF]

open access: yes, 2020
Retinal image light distributions in a standard optical model of a diffraction-limited eye with round pupils are presented for several patterns of amplitude and phase modulation of the light admitted into the eye.
Westheimer, Gerald
core  

Personalized Selumetinib Dosing in Pediatric Neurofibromatosis Type 1: Insights From a Pilot Therapeutic Drug Monitoring Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács   +8 more
wiley   +1 more source

Fixational eye movements and binocular vision

open access: yesFrontiers in Integrative Neuroscience, 2014
During attempted visual fixation, small involuntary eye movements –called fixational eye movements--continuously change of our gaze’s position. Disagreement between the left and right eye positions during such motions can produce diplopia (double vision).
Jorge eOtero-Millan   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy