Results 11 to 20 of about 685 (145)
Frequency doubling technology perimetry for neuro-ophthalmological diseases. [PDF]
Br J Ophthalmol, 2004 It will be beneficial to all eye care practitioners if investigations of a wide variety of ocular and neurological diseases are evaluated with FDT perimetry In the past decade, there have been many advances in diagnostic test procedures for evaluation of structural and functional changes affecting the visual pathways.
Johnson CA.
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Effect of cataract extraction on frequency doubling technology perimetry in patients with glaucoma. [PDF]
Br J Ophthalmol, 2005 To evaluate the effect of cataract surgery on frequency doubling technology (FDT) perimetry in patients with co-existing cataract and glaucoma.In this consecutive prospective cohort study 27 patients with open angle glaucoma scheduled for cataract extraction alone or combined with trabeculectomy were enrolled.
Siddiqui MA, Azuara-Blanco A, Neville S.
europepmc +5 more sources
Prediction of future scotoma on conventional automated static perimetry using frequency doubling technology perimetry. [PDF]
Br J Ophthalmol, 2006 To see if scotoma detected with frequency doubling technology (FDT) is confirmed by Humphrey field analyser (HFA) 3 years later.Subjects were first examined with the screening C-20-1 program of FDT. The visual field was examined annually for 4 years using HFA program C30-2.
Kogure S, Toda Y, Tsukahara S.
europepmc +4 more sources
Frequency-Doubling Technology Perimetry and Optical Defocus
Investigative Ophthalmology and 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 ...
Chris A. Johnson
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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
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Role of frequency doubling technology perimetry in screening of diabetic retinopathy.
Indian Journal of Ophthalmology, 2006 Purpose: To study the ability of frequency-doubling technology perimetry (FDT) to detect sight-threatening diabetic retinopathy. Method: Fifty-eight eyes of fifty-eight patients with established diagnosis of diabetes mellitus with diabetic retinopathy,
Parikh Rajul +5 more
doaj +3 more sources
Investigative Ophthalmology and Visual Science, 2005 To compare full-threshold (FT) and SITA algorithms for standard automated perimetry (SAP) with frequency-doubling technology perimetry (FDT) in glaucoma, to help clinicians to relate results in patients who have had two or more of these tests during follow-up.This study was a retrospective analysis of data from a longitudinal prospective study at the ...
Makoto Aihara +2 more
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Investigative Ophthalmology and Visual Science, 2011 To compare the performance of standard automated perimetry (SAP), frequency-doubling technology (FDT) perimetry, and short-wavelength automated perimetry (SWAP) in detecting glaucoma.One hundred thirty-two eyes of 95 glaucoma patients and 37 normal subjects had retinal nerve fiber layer (RNFL) imaging and visual field testing by SAP, Matrix FDT ...
Robert N Weinreb +2 more
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Frequency doubling technology and high-pass resolution perimetry in glaucoma and ocular hypertension [PDF]
Acta Ophthalmologica, 2003 Abstract.Purpose: To study the correlation between frequency doubling technology perimetry (FDT) and high‐pass resolution perimetry (HRP) in eyes with primary open‐angle glaucoma, suspect glaucoma, ocular hypertension, and in normal eyes.Patients and Methods: Ninety‐four patients (162 eyes) were studied.
Lada Kalaboukhova, Bertil Lindblom
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Comparative Analysis of Visual Field Plotting by Octopus Interzeag 1-2-3, Humphrey Field Analyser II and Frequency Doubling Perimetry in Glaucoma Patients in South Indian Population [PDF]
Journal of Clinical and Diagnostic Research, 2015 Purpose: Standard achromatic perimetry tests the differential light sensitivity whereas the frequency doubling technology tests the contrast sensitivity.
AR RAJALAKSHMI +2 more
doaj +1 more source