PubMed Journals Articles About "Reduced Visual Acuity Associated With Decline Reading Efficiency" RSS

01:36 EST 16th December 2018 | BioPortfolio

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Showing "Reduced visual acuity associated with decline reading efficiency" PubMed Articles 1–25 of 19,000+

Reading Acuity as a Predictor of Low-Vision Reading Performance.

Most people with low vision experience difficulty with reading. Reading assessment can provide guidance for prescription of reading aids and strategies for reading rehabilitation. Here we investigate the effectiveness of letter acuity (LA) and reading acuity (RA) as predictors of low-vision reading performance.

Visual acuity assessment in diabetes.

Optometric or visual acuity assessment is an essential part of ophthalmologic examination. Visual acuity measurement serves as a tool for screening of ophthalmic disorders, as well as diagnosis and monitoring of refractive errors and other causes of reduced acuity. Persons with diabetes may experience situations which impair visual acuity, or which impact the utility of refractive visual acuity assessment. This communication shares guidance as to when and when not to perform visual acuity charting in person...

Amblyopia: The Thalamus Is a No-Go Area for Visual Acuity.

When one eye does not function well during development, the visual cortex becomes less responsive to it and visual acuity declines. New research suggests that reduced response strength and deteriorating acuity occur in separate circuits.

Measuring Visual Acuity.

This article reviews the basic physiology of visual acuity and the principles for its clinical measurement. It describes visual acuity and its limits as a function of the human eye. Referring to the new international standard ISO/FDIS8596:2017 it explains the conditions for standardized visual acuity testing. Furthermore, it gives detailed instruction on measuring visual acuity at distance and near, as well as in children, in low vision patients and for scientific purposes.

Predicting Visual Acuity From Visual Field Sensitivity in Age-Related Macular Degeneration.

To investigate how well visual field sensitivity predicts visual acuity at the same locations in macular disease, and to assess whether such predictions may be useful for selecting an optimum area for fixation training.

Induced Tropia Test and Visual Acuity Testing in Nonverbal Children.

The objective of our study was to compare the Cardiff Acuity Card© test (CAC test) (Kay Pictures Ltd) with the induced tropia test (ITT) in nonverbal children for the detection of monocular vision deficit. This is a retrospective case note review of 34 nonverbal children, aged 12-48 months, attending the pediatric ophthalmology clinic at Children's Hospital of Pittsburgh of UPMC between October 2014 and January 2015. 30/34 were included for analysis. Binocular visual acuity and monocular visual acuity wer...

Do all visual deficits cause pure alexia? Dissociations between visual processing and reading suggest "no".

Pure alexia is a deficit of reading affecting the ability to process a word's letters in parallel. Instead, a slow, effortful letter-by-letter reading strategy is employed. It has been claimed that a visual impairment caused the reading impairment. The present study compares visual processing and word reading of a patient with severe visuospatial deficits due to probable posterior cortical atrophy (PCA) to two patients with pure alexia. A double dissociation emerged between visual processing and word readin...

Dual sensory impairment: The association between glaucomatous vision loss and hearing impairment and function.

Hearing impairment, vision impairment, and dual impairment (both hearing and vision impairment), have been independently associated with functional and cognitive decline. In prior studies of dual impairment, vision impairment is generally not defined or defined by visual acuity alone. Glaucoma is a leading cause of blindness and does not affect visual acuity until late in the disease; instead, visual field loss is used to measure vision impairment from glaucoma.

Useful field of view test performance throughout adulthood in subjects without ocular disorders.

Previous research has shown an age-related decline in Useful Field of View (UFOV) test performance, which measures the duration required to extract relevant information from a scene in three subtasks. However, these results are mostly based on data that may have been confounded by (age-related) ocular diseases. We examined UFOV performance in subjects aged 19.5 to 70.3 years to investigate how UFOV performance changes throughout adulthood. All subjects underwent a thorough ophthalmological examination to ex...

Relationship Between Foveal Cone Structure and Visual Acuity Measured With Adaptive Optics Scanning Laser Ophthalmoscopy in Retinal Degeneration.

To evaluate foveal function in patients with inherited retinal degenerations (IRD) by measuring visual acuity (VA) after correction of higher-order aberrations.

Mesopic visual acuity is less crowded.

The decrease in visual acuity under low luminance conditions is well known. Recent laboratory evidence showed that crowding under low luminance (mesopic) light levels is less robust than under photopic conditions. The present study examines whether such differences in crowding influence clinical measurements of mesopic visual acuity, including test-retest repeatability.

Effects of bifocals on visual acuity in children with Down syndrome: a randomized controlled trial.

Children with Down syndrome (DS) typically have reduced visual acuity (VA) and accommodation lag, but it is unclear whether prescribed glasses should correct both distance VA (DVA) and near VA (NVA) due to the lack of RCTs. We therefore conducted a multicentre RCT to compare the effects of bifocals designed to correct both DVA and NVA with distance-correcting unifocal glasses in children with DS.

Eccentric fixation patterns, clinical findings, and reading speed in patients with bilateral toxoplasmic macular retinochoroiditis.

To study visual acuity, refractive errors, eccentric fixation, and reading performance in patients with toxoplasmic macular retinochoroiditis.

Dynamic Visual Acuity test while walking or running on treadmill: Reliability and normative data.

This study aimed to report normative reference data for a Dynamic Visual Acuity test while walking on treadmill. The protocol's suitability was assessed by investigating its test-retest reliability and its validity through the drop-out rate and verification of the frequency of head movements. Furthermore, the influence of age on visual acuity loss (VAL) was determined to reveal the need for age-specific reference data.

Spontaneous separation of secondary epiretinal membrane.

The article presents a rare clinical case of secondary epiretinal membrane (ERM) in a 67-years-old woman. The patient was diagnosed with ERM in the left eye after loss of vision complaints. One year prior to the visit the patient had underwent 2 sessions of laser photocoagulation for proliferative post-thrombotic retinopathy in the left eye. In the context of relatively high visual functions (decimal visual acuity of 0.7 at the time of the visit), observation strategy was carried out. The follow-up period w...

Static and dynamic visual acuity and refractive errors in elite football players.

The aim of this study was to investigate static and dynamic visual acuity, refractive error, and the use of visual compensation of elite football players.

Prediction of Visual Acuity After Cataract Surgery Using Optical Coherence Tomography Findings in Eyes With Retinitis Pigmentosa.

To investigate the predictive factors of visual acuity (VA) after cataract surgery in patients with retinitis pigmentosa (RP).

Visual Impairment and Eye Disease Among Children of Migrant Farmworkers.

To determine the prevalence of reduced visual acuity and ocular disease in the children of migrant farmworkers in Georgia.

Relationship Between Dry Retinal Volume and Visual Acuity in Diabetic Macular Edema.

To evaluate the relationship between a novel spectral-domain optical coherence tomography (SD-OCT) parameter, predicted dry retinal volume (DRV), and visual acuity (VA) in subjects with diabetic macular edema.

Benefits of low vision aids to reading accessibility.

The Reading Accessibility Index (ACC) has been proposed as a single-value reading parameter that can capture information on both reading speed and print sizes that can be read. It is defined as the average reading speed across a relevant range of print sizes (1.3-0.4logMAR), normalised by typical young-adult reading speed of 200wpm, and with values typically in the range of 0-1. This study determines the impact of low vision aids (LVAs) on reading by evaluating ACC values for visually impaired observers rea...

Projection of long-term visual acuity outcomes based on initial treatment response in neovascular age-related macular degeneration.

To explore various methods for assessing the early response to vascular endothelial growth factor (VEGF) inhibitors for neovascular age-related macular degeneration and investigate their association with 3 year visual acuity (VA) outcomes.

Multiple-Choice Answer Form Completion Time in Children With Amblyopia and Strabismus.

Abnormal binocular experience during infancy or childhood from strabismus and/or anisometropia results in visual acuity deficits (eg, amblyopia) and impaired stereoacuity. These pediatric eye conditions have also been linked to slow reading and fine motor impairment.

Tessellated fundus appearance and its association with myopic refractive error.

The appearance of tessellated fundus in an eye may act as a marker in identifying visual performance, degree of myopia or risk of progression of myopia in a given eye. A systematic literature search using key words was performed using PubMed, Web of Science and Google Scholar and of the 832 studies identified, 10 full-length articles, which met the inclusion criteria, were considered for review. The primary outcome measures were association of tessellated fundus with: (i) visual acuity, (ii) refractive erro...

Macular Features on Spectral-Domain Optical Coherence Tomography Imaging Associated With Visual Acuity in Coats' Disease.

To investigate the association between macular features on spectral-domain optical coherence tomography (SD-OCT) and visual acuity (VA) in Coats' disease.

Assessment of Visual Acuity in Children Using Crowded Lea Symbol Charts.

Vision charts comprising single Lea symbols surrounded by either flanking bars or flanking Lea symbols are available for measurement of visual acuity in children. However, the results obtained with such charts may not be interchangeable owing to potential differences in the crowding effect.

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