- •Preface
- •Analysis of field data
- •Interpolation of perimetric test grids using artificial neural networks
- •A new scoring program for quantification of the binocular visual field
- •A variance-equalizing transformation for the analysis of visual fields
- •Mixture of factor analysis of standard visual fields
- •Variability components of standard perimetry
- •Comparison of different methods for detecting glaucomatous visual field progression
- •Clinical perimetry
- •Does patient education result in more reliable initial visual fields?
- •Tendency oriented perimetry in children with ocular abnormalities
- •A computer application for training kinetic perimetry
- •Evaluation of stato-kinetic dissociation using examiner-independent automated perimetric techniques
- •Prevalence and characteristics of central binocular visual field defects in patients attending a glaucoma perimetry service
- •Comparison of tests
- •Comparison of conventional automated perimetry, short-wavelength automated perimetry and frequency-doubling technology in the assessment of patients with multiple sclerosis
- •Conventional perimetry and frequency-doubling technique
- •Tendency oriented perimetry versus Fastpac in patients with neuro-ophthalmological defects
- •Comparison of selected parameters of SITA Fast and Full Threshold strategies in evaluation of glaucoma suspects
- •Continuous light increment perimetry (CLIP) strategy compared to full threshold strategy in glaucoma patients
- •Frequency-doubling technology and high-pass resolution perimetry in glaucoma and ocular hypertension
- •Glaucoma
- •Glaucoma diagnosis using tendency oriented perimetry
- •Influence of optic disc appearance and diurnal variation of intraocular pressure on visual field defect in normal tension glaucoma
- •The relationship between perimetric and metabolic defects caused by experimental glaucoma
- •Combining structural and functional assessment to detect glaucoma
- •New perimetric techniques
- •Utility of a dynamic termination criterion in bayesian adaptive threshold procedures
- •Novel 3D computerized threshold Amsler grid test
- •Second generation of the tendency oriented perimetry algorithm in glaucoma patients
- •SITA-standard and short-wavelength automated perimetry in the early diagnosis of glaucoma
- •Realization of semi-automated kinetic perimetry with the Interzeag Octopus 101 instrument
- •Resolution perimetry using Landolt C
- •Combined spatial, contrast and temporal function perimetry in early glaucoma and ocular hypertension
- •Objective measures
- •Detection of glaucomatous visual field loss using multifocal visual evoked potential
- •The multifocal visual evoked potential in functional visual loss
- •Multifocal visual evoked potential in optic neuropathies and homonymous hemianopias
- •Optic nerve head imaging
- •Confirmatory results in suspect glaucoma patients with normal visual field and abnormal retinal nerve fiber layer findings
- •Discriminating analysis formulas for detecting glaucomatous optic discs
- •Reproducibility of the Heidelberg Retina Flowmeter by automatic full field perfusion image analysis
- •The ability of the Heidelberg Retina Tomograph and GDx to detect patients with early glaucoma
- •Assessment of digital stereoscopic optic disc images using a Z Screen
- •The correlation between change in optic disc neuroretinal rim area and differential light sensitivity
- •The effect of contour-line drawing criteria on optic disc parameters as measured with the Heidelberg Retina Tomograph
- •Evaluation of effectiveness of new GDx parameters
- •Psychophysics
- •Spatial summation for single line and multi-line motion stimuli
- •Normal relationship between luminous threshold and critical flicker fusion frequency
- •Perimetric measurement of contrast sensitivity functions
- •Association between birth weight deviation and visual function
- •Retinal and neurological disorders
- •Natural course of homonymous visual field defects as a function of lesion location, pathogenesis and scotoma extent
- •A relative afferent pupillary defect is an early sign of optic nerve damage in glaucoma
- •Visual field changes after pars plana vitrectomy and internal limiting membrane peeling
- •The relationship between retinal contraction and metamorphopsia scores in patients with epiretinal membranes
- •Screening
- •Frequency-doubling technology staging system accuracy in classifying glaucomatous damage severity
- •A new screening program for flicker perimetry
- •Screening for glaucoma in a general population with a non-mydriatic fundus camera and a frequency-doubling perimeter
- •Index of Authors
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COMBINED SPATIAL, CONTRAST AND TEMPORAL FUNCTION PERIMETRY IN EARLY GLAUCOMA AND OCULAR HYPERTENSION
MARTA GONZÁLEZ-HERNÁNDEZ, AUGUSTO ABREU, MANUEL SÁNCHEZ and MANUEL GONZÁLEZ DE LA ROSA
Hospital Universitario de Canarias. Universidad de La Laguna, Spain
Abstract
Purpose
To evaluate the diagnostic ability of a new perimetric procedure (Octopus Pulsar) that utilizes stimuli combining spatial resolution (SR), contrast (C) and motion or pulse, in early glaucoma.
Methods
Pulsar shows white round stimuli, 5° in diameter, 500 msec long, shaped like a wave decreasing in amplitude, in 66 locations of the visual field. The stimuli scale combines SR and C in 36 src units. Fiftysix normal and 82 ocular hypertension and glaucoma eyes (one per subject) with a mean defect (MD) of < 7 dB on white-white Octopus 1-2-3 standard perimetry (WW) were included. Of these 82 cases, 29 did not show a WW perimetric defect (level 0) and 53 were grouped into three levels, depending on the criteria used for perimetric diagnosis, level 3 being the group with the worse visual field loss. Two types of stimuli were used: one with a centrifugal wave motion at 8 cyl/deg (K6W), the other with a pulse at 30 Hz (T30W).
Results
The mean examination time was 3:49 minutes. Specificities were 96.4% (T30W) and 94.6% (K6W) for a cut-off level of MD = 3 src. Sensitivities for level 0 were 34.5% (T30W) and 24.1% (K6W). The receiver operating characteristic (ROC) curve areas for T30W at levels 1, 2, and 3 were 0.88, 0.94, and 0.99, respectively. Sensitivities were 69.8, 82.9, and 100%, respectively. The ROC areas for K6W were 0.83, 0.91, and 0.97, respectively. Sensitivity for level 3 was 75%. There was good correlation between both Pulsar perimetries (r = 0.88), but it was lower with WW (r = 0.58 for T30W, and r = 0.59 for K6W).
Conclusion
T30W perimetry may show manifest glaucomatous damage earlier than conventional luminous threshold perimetry.
Address for correspondence: Marta González-Hernández, C/. 25 de Julio, 34, 38004. Santa Cruz de Tenerife, Spain. Email: mgdelarosa@jet.es
Perimetry Update 2002/2003, p. 247
Proceedings of the XVth International Perimetric Society Meeting, Stratford-upon-Avon, England, June 26–29, 2002
edited by David B. Henson and Michael Wall
© 2004 Kugler Publications, The Hague, The Netherlands
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