Results 31 to 40 of about 365,569 (360)
Systems and methods for altering visual acuity [PDF]
, 2012 Provided are systems operable to effect a temporary change in a modulation transfer function (MTF) of a target imaging system. The systems include a light source operable to produce light for transient propagation onto at least a portion of the target ...
Milner, Thomas E. +3 more
core +1 more source
New Microbes and New Infections, EarlyView., 2014 Abstract We describe a case of fungal keratitis due to Beauveria bassiana in a farmer with Fuchs' dystrophy, treated with amphotericin B. Surgery with penetrating keratoplasty was necessary to resolve the lesions. Susceptibility testing and molecular sequencing permitted the identification and treatment of this rare aetiological agent of invasive ...
M. Ligozzi +8 more
wiley +1 more source
The evaluation of vision in children using monocular vision acuity and strereo-acuity tests [PDF]
, 2011 Monocular visual acuity and stereo-acuity tests were carried out on 308 children between the ages of two to twelve years. Children with reduced visual acuity (V.A) and who failed the RandomDot E (RDE) stereo- acuity tests were further examined for ...
Emina, MO, Osaiyuwu, AB
core +2 more sources
Journal of Ophthalmology, 2021 Purpose. To determine the effects of cataract surgery on contrast visual acuity and retinal sensitivity in patients with retinitis pigmentosa. Methods. Retinal sensitivity and contrast visual acuity were determined by microperimetry (MAIA) and contrast ...
Gen Miura +4 more
doaj +1 more source
Assessing visual acuity in visual prostheses through a virtual-reality system [PDF]
arXiv, 2022 Current visual implants still provide very low resolution and limited field of view, thus limiting visual acuity in implanted patients. Developments of new strategies of artificial vision simulation systems by harnessing new advancements in technologies are of upmost priorities for the development of new visual devices.
arxiv
Visual Acuity Prediction on Real-Life Patient Data Using a Machine Learning Based Multistage System [PDF]
, 2022 In ophthalmology, intravitreal operative medication therapy (IVOM) is a widespread treatment for diseases related to the age-related macular degeneration (AMD), the diabetic macular edema (DME), as well as the retinal vein occlusion (RVO). However, in real-world settings, patients often suffer from loss of vision on time scales of years despite therapy,
arxiv +1 more source
Retrospective, controlled observational case study of patients with central retinal vein occlusion and initially low visual acuity treated with an intravitreal dexamethasone implant [PDF]
, 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
Taiwan Journal of Ophthalmology, 2022 PURPOSE: The aim of this study was to compare the visual acuity (VA) by smartphone-based applications – EyeChart and the Peek Acuity to the standard Snellen chart to explore the possibility of using them as an alternative in tele-ophthalmology in the ...
Aparna Bhaskaran +4 more
doaj +1 more source
Development of visual acuity [PDF]
Archives of Disease in Childhood, 1973 A hand-held electrically operated instrument has been devised to assess visual acuity by means of the phenomenon of opto-kinetic fixation nystagmus. An accurate determination of visual acuity has been obtained from an early age, and a graph of the normal visual acuity development produced. It has been confirmed that adult acuity is reached by 3 years
A. Oliver, G. V. Catford
openaire +6 more sources
Transthyretin levels in the vitreous correlate with change in visual acuity after vitrectomy [PDF]
, 2009 Background/aim: Little is known about biochemical markers related to change in visual acuity after vitrectomy. The potential use of transthyretin (TTR), a carrier of the retinol/retinol-binding protein, as a biochemical marker protein, was investigated ...
De Letter, Els +7 more
core +3 more sources