Results 21 to 30 of about 2,286,725 (395)

Primary radiotherapy in progressive optic nerve sheath meningiomas: a long-term follow-up study [PDF]

open access: yes, 2010
Background/aims: To report the outcome of primary radiotherapy in patients with progressive optic nerve sheath meningioma (ONSM). Methods: The clinical records of all patients were reviewed in a retrospective, observational, multicentre study.
Blank, L.   +8 more
core   +10 more sources

Photometric compliance of tablet screens and retro-illuminated acuity charts as visual acuity measurement devices [PDF]

open access: yes, 2016
Mobile technology is increasingly used to measure visual acuity. Standards for chart-based acuity tests specify photometric requirements for luminance, optotype contrast and luminance uniformity.
Bastawrous, A.   +5 more
core   +9 more sources

A comparative study on peek (Smartphone based) Visual acuity test and LogMAR visual acuity test

open access: yesTNOA Journal of Ophthalmic Science and Research, 2023
Context: The use of smartphone-based peek acuity application to test the visual acuity will improve the time efficacy, availability, and utility of subjective results collections for the healthcare providers.
J Anitha   +4 more
doaj   +1 more source

Presaccadic attention sharpens visual acuity

open access: yesScientific Reports, 2023
Visual perception is limited by spatial resolution, the ability to discriminate fine details. Spatial resolution not only declines with eccentricity but also differs for polar angle locations around the visual field, also known as ‘performance fields ...
Yuna Kwak   +2 more
doaj   +1 more source

Visual Acuity does not Moderate Effect Sizes of Higher-Level Cognitive Tasks. [PDF]

open access: yes, 2016
Background/study contextDeclining visual capacities in older adults have been posited as a driving force behind adult age differences in higher-order cognitive functions (e.g., the "common cause" hypothesis of Lindenberger & Baltes, 1994, Psychology ...
Allen, Philip A   +3 more
core   +2 more sources

Visual Acuity: Decoded

open access: yesDelhi Journal of Ophthalmology, 2019
In the current scenario of competition, paper writing, critical analysis and stardom, we forget to analyse the basics of the subject, one of which is a visual acuity standard.
Pushkar Dhir   +10 more
doaj   +1 more source

Dysflective cones: Visual function and cone reflectivity in long-term follow-up of acute bilateral foveolitis. [PDF]

open access: yes, 2017
PURPOSE:Confocal adaptive optics scanning laser ophthalmoscope (AOSLO) images provide a sensitive measure of cone structure. However, the relationship between structural findings of diminished cone reflectivity and visual function is unclear.
Cunningham, Emmett T   +9 more
core   +1 more source

Visual pathway function and structure in Wolfram syndrome: Patient age, variation and progression [PDF]

open access: yes, 2018
Background/aimsTo report alterations in visual acuity and visual pathway structure over an interval of 1–3 years in a cohort of children, adolescents and young adults who have Wolfram syndrome (WFS) and to describe the range of disease severity evident ...
Al-Lozi, Amal   +6 more
core   +2 more sources

Retrospective, controlled observational case study of patients with central retinal vein occlusion and initially low visual acuity treated with an intravitreal dexamethasone implant [PDF]

open access: yes, 2016
Background Patients with initially low visual acuity were excluded from the therapy approval studies for retinal vein occlusion. But up to 28 % of patients presenting with central retinal vein occlusion have a baseline BCVA of less than 34 ETDRS letters (
Annabelle Eckert   +9 more
core   +2 more sources

Effect of Initial Management With Aflibercept vs Laser Photocoagulation vs Observation on Vision Loss Among Patients With Diabetic Macular Edema Involving the Center of the Macula and Good Visual Acuity: A Randomized Clinical Trial.

open access: yesJournal of the American Medical Association (JAMA), 2019
Importance Intravitreous injections of antivascular endothelial growth factor agents are effective for treating diabetic macular edema (DME) involving the center of the macula (center-involved DME [CI-DME]) with visual acuity impairment (20/32 or worse).
C. Baker   +12 more
semanticscholar   +1 more source

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