Perimetry update 2002 2003 wall m. Comparison of size modulation and conventional standard automated perimetry with the 24 2019-01-28

Perimetry update 2002 2003 wall m Rating: 4,3/10 1952 reviews

Nonconventional Perimetry

perimetry update 2002 2003 wall m

Human psychophysical analysis of receptive field-like properties: V. Structure-function relationships in the macula of glaucoma patients. Pupil characteristics and eye movements were monitored during the examination by the image produced from an infrared camera inside the cupola. The mean interindividual variability was 11. Incidence and defects related to visual field strategy. Arch Neurol, 52 2 , 141-145. Arch Ophthalmol 111, 62—65 1993.

Next

Optic Disc Tomography and Perimetry in Controls, Glaucoma Su... : Optometry and Vision Science

perimetry update 2002 2003 wall m

Comparison of laser and infrared techniques for measurement of the resting focus of accommodation: Mean differences and long-term variability. In: 76° Encontro da Sociedad Española de Oftalmologia, 2000. Invest Ophthalmol Vis Sci, 37 5 , 878-885. Variability in patients with glaucomatous visual field damage is reduced using size V stimuli. Factors Affecting Visual Field Outcomes in the Idiopathic Intracranial Hypertension Treatment Trial.

Next

Neuro

perimetry update 2002 2003 wall m

Comparative material on automated and semiautomated perimeters - 1984. Fourteen subjects 2 from each of 7 age groups were evaluated on three separate sessions to assess test—retest reliability of the isopters. Neurology, 53 5 , 1114-8. One can also measure the learning effect by observing the subject's ability to perform reliable examinations. New York: Oxford University Press. Surgical tape can be used to raise the lid and brow to overcome this problem on repeated tests.

Next

Chris Johnson

perimetry update 2002 2003 wall m

The —1 screening test, example above presents stimuli at a contrast level that 99% of healthy age-matched subjects would be able to detect. Progression of disc and field damage in early glaucoma. Results There was a small but significant test size—dependent sensitivity decline with age, with smaller stimuli declining more rapidly. Conclusions: Structural and functional results were stable during the 18-month follow-up period. Simulations predicted that linear staircases could reduce the sensitivity-dependence of bias, variability and efficiency. Semin Ophthalmol, 19 3-4 , 95-100. Age-related decline in sensitivity was more rapid in the periphery.

Next

Nonconventional Perimetry

perimetry update 2002 2003 wall m

The variables of automated perimetry. When both eyes were eligible, we included the right eye, exception when the left eye had better visual acuity. This phenomenon was thought to be associated with subject attention for the area of the presented stimulus. Ophthal Physiol Opt, 4, 123-131. Furthermore, drugs or other therapeutic interventions such as intravitreal drug delivery systems or systemic medication may interfere with the entire retina and visual system. The maximum visual angle is approximately 105 0 , but there is limited information about variations with age, race, or refractive error in case there is an unexpected link with the development of myopia , or about how clear cornea, iris location, and the limiting retina are related. A superior partial arcuate deficit is detected within a test duration interval of approximately 4 minutes and 9 seconds.

Next

PERIMETRY

perimetry update 2002 2003 wall m

Goldmann kinetic perimetry was performed manually with both inward peripheral to center and outward center to periphery directions of movement to deduce an ''average'' isopter. We used the following seven combinations of Goldmann stimulus sizes, stimulus luminance levels, and angular velocities that are presented in. A history of perimetry and visual field testing. Computed tomographic and magnetic resonance imaging of vanishing cerebral infarct. The mean age was 28.

Next

Evaluation of stimulus velocity in automated kinetic perimetry in young healthy participants

perimetry update 2002 2003 wall m

Our goal is to find the cause of the disease and to develop evidence-based treatment strategies. Molecular Vision, 13 18-19 , 151-63. Glaucoma Perspectives in Practice, 3 1 , 7. Testing Visual Function in Glaucoma, Chapter 13. Learning effect and test-retest variability of pulsar perimetry. A média global da flutuação a curto prazo foi igual a 5,06±1,13 Hz, a variabilidade média inter e intra-individual foram, respectivamente, 11,2± 2,8% e 6,4±1,5%. J Glaucoma, 16 1 , 73-80.

Next

Nonconventional Perimetry

perimetry update 2002 2003 wall m

. J Neuroophthalmol, 22 3 , 199-203. Visual loss in pseudotumor cerebri. Variability in patients with glaucomatous visual field damage is reduced using size V stimuli. Spatial vision in visually asymptomatic subjects at high risk for multiple sclerosis.

Next

Semi

perimetry update 2002 2003 wall m

A study that defined interindividual variability as the statistical variance in dB 2 of the average threshold sensitivity across all subjects, found a value equal to 2. The effect of stimulus size on variability in conventional automated perimetry. Some psychophysical considerations for visual training. American journal of ophthalmology, 121 5 , 547-53. Normative databases for Imaging Instrumentation. Archives of neurology, 50 8 , 841-6.

Next