Results 161 to 170 of about 1,693 (206)

Screening for glaucoma with a novel eye movement perimetry technique based on continuous visual stimulus tracking

Vrijling A, de Boer M, Renken R, Marsman J, Heutink J, Cornelissen F, Jansonius N.   +6 more
europepmc   +1 more source

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Short-wavelength automated perimetry and frequency-doubling technology perimetry in glaucoma

Progress in Brain Research, 2008
Standard automated perimetry (SAP) is today still the clinical standard for the management of glaucoma and its progression, though it has been shown that it may detect the disease only after the death of a high number of retinal ganglion cells (RGCs).
Paolo Fogagnolo, Luca Rossetti, Antonio Ferreras   +2 more
exaly   +3 more sources

Rarebit Perimetry and Frequency Doubling Technology in Patients with Ocular Hypertension

European Journal of Ophthalmology, 2008
Purpose To test the capability of rarebit perimetry (RP), a recent non-conventional perimetric technique, in detecting early functional damage in subjects with ocular hypertension (OHT) and to compare RP findings with those obtained by frequency-doubling technology (FDT) perimetry. Methods Thirty patients with OHT were matched with 30 healthy subjects.
Michele Iester
exaly   +4 more sources

Rarebit and frequency-doubling technology perimetry in children and young adults

Acta Ophthalmologica, 2005
Abstract.Purpose:  To describe the outcome of visual field examinations performed with rarebit (RB) and frequency‐doubling technology perimetry (FDT) in children and young adults. Methods:  Twenty‐one children (aged 6.5–12 years) and 30 teenagers and young adults (aged 14–20 years), participated in the study.
exaly   +3 more sources

Standard achromatic perimetry, short wavelength automated perimetry, and frequency doubling technology for detection of glaucoma damage

Ophthalmology, 2002
Reevaluation of the relationship between short wavelength automated perimetry (SWAP), standard achromatic perimetry (SAP), and frequency doubling technology (FDT) in glaucoma and ocular hypertensive patients and in glaucoma suspects.Prospective comparative observational study.Four age-matched groups were evaluated (42 patients with early to moderate ...
Marc D De Smet
exaly   +3 more sources

Frequency-doubling technology perimetry

Ophthalmology Clinics of North America, 2003
The FDT perimeter is a compact and relatively inexpensive perimeter whose transportability, tolerance to refractive errors, and rapid test times (less than 1 minute per eye) make it a suitable candidate for visual field screening. It is a uniform finding that the C-20-1 screening protocol of the FDT perimeter provides good sensitivity and specificity ...
Andrew J, Anderson, Chris A, Johnson
openaire   +4 more sources

Frequency Doubling Technology perimetry and standard automated perimetry in migraine

Ophthalmic and Physiological Optics, 2005
Abstract The literature suggests that visual field defects may be more common in people who experience migraine. The Humphrey frequency doubling (FDT) visual field instrument selectively examines the magnocellular visual pathway, but has not previously been used to investigate visual function in migraine.
Deacon E, Harle, Bruce J W, Evans
openaire   +2 more sources

Frequency Doubling Technology Perimetry in Normal Children

American Journal of Ophthalmology, 2006
To test visual field thresholds of normal children with frequency doubling technology (FDT) perimetry to quantify testing times and reliability characteristics in a pediatric population and to determine whether current methods of stratifying adult threshold values need revision for children.Prospective cross-sectional study.Ninety-four children, ages 5
Laurel M, Quinn, Stuart K, Gardiner, David T, Wheeler, Michelle, Newkirk, Chris A, Johnson   +4 more
openaire   +2 more sources

Effect of cataract extraction on frequency doubling technology perimetry

American Journal of Ophthalmology, 2004
To investigate the effect of cataract extraction on the results of frequency doubling technology (FDT) perimetry in healthy subjects.Single-center, prospective, case series.We performed FDT threshold C20-1 and Humphrey Swedish Interactive Threshold Algorithm (SITA)-fast programs within 1 month before and 2 months after phacoemulsification in 52 ...
Michael S, Kook, Sung Jae, Yang, Suhyun, Kim, Jiyong, Chung, Soon-Tae, Kim, Hungwon, Tchah   +5 more
openaire   +2 more sources

Normal Aging Effects for Frequency Doubling Technology Perimetry

Optometry and Vision Science, 1999
To determine the influence of normal aging on contrast sensitivity for frequency doubling technology (FDT) perimetry.Contrast sensitivity measures were obtained for frequency-doubled stimuli (0.25 cycles per degree sinusoidal gratings undergoing 25 Hz counterphase flicker) at 17 target locations (4 per quadrant plus the central 5 degrees ) using a ...
C W, Adams, M A, Bullimore, M, Wall, M, Fingeret, C A, Johnson   +4 more
openaire   +2 more sources