Results 21 to 30 of about 11,434,288 (193)
Oftalʹmologiâ, 2023 Purpose: To compare the diagnostic effectiveness of non-standard perimetry and standard automated perimetry (SAP) during earlystage monitoring of primary open-angle glaucoma (POAG).Patients and methods. The study involved 30 patients (46 eyes) with early-
I. L. Simakova +2 more
doaj +1 more source
Oftalʹmologiâ, 2020 The literature review presents the results of a static perimetry for the study of the visual field in patients with compression in the chiasm-sellar region on the Humphrey Visual Field Analyzer (HFA) and Octopus. These models of perimeters are recognized
N. A. Gavrilova +5 more
doaj +1 more source
Screening for Patients with Mild Alzheimer Disease Using Frequency Doubling Technology Perimetry. [PDF]
Neuroophthalmology, 2013 We compared the visual field performances of patients with mild Alzheimer disease (AD) with normal subjects and detected visual field impairment attributable to the magnocellular pathway using frequency doubling technology-Matrix (FDT-Matrix). We recruited 43 patients with mild AD (mean age: 68.0 ± 7.2 years) and 33 controls who are visually and ...
Aykan U +3 more
europepmc +5 more sources
Frequency-Doubling Technology Perimetry and Optical Defocus
Investigative Opthalmology & Visual Science, 2003 The frequency-doubling technology (FDT) perimeter has no provision for introducing corrective lenses, save for the patient's spectacles, and so patients are sometimes tested in the presence of moderate levels of defocus. The effect of defocus on frequency-doubling (FD) sensitivity was determined for both the commercially available instrument and for ...
Andrew John, Anderson, Chris A, Johnson
openaire +2 more sources
Associations between structure and function are different in healthy and glaucomatous eyes. [PDF]
PLoS ONE, 2018 To assess if there are differences in the structure-function associations between healthy and glaucomatous eyes.Structure-function associations were assessed in healthy and glaucomatous eyes in three datasets, globally and in the six sectors of the optic
Fang-I Chu +3 more
doaj +1 more source
FDT Perimetry for Glaucoma Detection in Comprehensive Health Checkup Service
Journal of Ophthalmology, 2020 We aimed to investigate the efficacy of frequency doubling technology (FDT) perimetry for glaucoma detection in comprehensive screening examinations. We performed a retrospective analysis of prospectively collected data of participants who underwent a ...
Ryo Terauchi +6 more
doaj +1 more source
Scientific Reports, 2022 The frequency-doubling technology (FDT) screening test (FDT-C-20-1) has adopted in many recent population-based glaucoma surveys, but factors associated with false-positive (FP) responses to FDT-C-20-1 in normal eyes and false-negative (FN) responses in ...
Aiko Iwase +4 more
doaj +1 more source
Indian Journal of Ophthalmology, 2013 Background: To compare the usefulness of the traditional pattern-reversal Visual Evoked Potentials (VEP) with multifocal VEP (mfVEP) and Frequency-Doubling Technology (FDT) perimetry in the evaluation of the ocular abnormalities induced by acute or ...
Marcella Nebbioso +3 more
doaj +1 more source
Frequency Doubling Technology Perimetry
, 2021 Summary: Frequency Doubling Technology (FDT): an easily portable, fast, and inexpensive instrument used to detect visual field loss • similar to Humphrey visual field, but uses frequency doubling to create an illusion • not used in neuro-ophthalmology ...
Andrew G. Lee, MD; Lauren Nakhleh
core
Learning effect of humphrey matrix frequency doubling technology perimetry in patients with ocular hypertension [PDF]
, 2008 Aim: To evaluate the learning effect of Frequency Doubling Technology (FDT) perimetry using the Humphrey Matrix-FDT perimetry (Matrix) 24-2 full-threshold program on patients with 7 ocular hypertension experienced with standard automated perimetry ...
Orzalesi N. +21 more
core +2 more sources