Influence of Pupillary Size on $$\overline {{\text{P100}}}$$ Latency Time of Pattern-Reversal VEP

Penne, A.; Fonda, Sergio

doi:10.1007/978-94-009-8656-5_27

Cited by 7 publications

(4 citation statements)

References 12 publications

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“…In addition, we included patients with pupil diameters as small as 2 mm, whereas the smallest pupil diameter in the Parisi et al 4 was 3 mm. A smaller pupil diameter 20 and an older control group [21][22][23][24][25] would tend to increase, not decrease, the latency of the cVEP. Dropping the 10 youngest individuals from our control group left 10 individuals with about the same ages (60 Ϯ 10 years) as those in our patient groups.…”

Section: Discussionmentioning

confidence: 99%

A Comparison between Multifocal and Conventional VEP Latency Changes Secondary to Glaucomatous Damage

Grippo

Hood

Kanadani

et al. 2006

Invest. Ophthalmol. Vis. Sci.

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Section: Discussionmentioning

confidence: 99%

A Comparison between Multifocal and Conventional VEP Latency Changes Secondary to Glaucomatous Damage

Grippo

Hood

Kanadani

et al. 2006

Invest. Ophthalmol. Vis. Sci.

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“…Des diamètres pupillaires variant entre 2,5 mm et 8 mm -ce qui correspond aux variations interindividuels -n'entraînent pas de modification des caractéristiques des PEV flash (Skalka & Holman, 1986) mais une diminution des temps de culmination de l'onde P100 des PEV damier, d'une dizaine de ms (Penne & Fonda, 1981) à cause de l'augmentation de l'éclairement rétinien.…”

Section: Diamètre Pupillaireunclassified

V-5 : Les POTENTIELS ÉVOQUÉS VISUELS corticaux (PEV)

Rigaudière¹

2010

Oeil Et Physiologie De La Vision

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“…There are non-organic factors influencing latency time such as check size, contrast, pupil size (Sokol, 1981;Penne and Fonda, 1981): the latter being important in the evaluation of pilocarpine-treated glaucomas. The eventual dominance of the later occurring upper half-field response has been discussed in section 3.…”

Section: Which Factors Influence Latency Time?mentioning

confidence: 99%

Neuropathies of the optic nerve and visual evoked potentials with special reference to color vision and differential light threshold measured with the computer perimeter OCTOPUS

Wildberger

1984

Doc Ophthalmol

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The contrast evoked potentials (VEPs) to different check sizes were recorded in about 200 cases of discrete optic neuropathies (ON) of different origin. Differential light threshold (DLT) was tested with the computer perimeter OCTOPUS. Saturated and desaturated tests were applied to evaluate the degree of acquired color vision deficiency. Delayed VEP responses are not confined to optic neuritis (RBN) alone and the different latency times obtained from other ON are confluent. The delay may be due to demyelination, to an increasing dominance of paramacular VEP subcomponents or to an increasing dominance of the upper half-field responses. Recording with smaller check sizes has the advantage that discrete dysfunctions in the visual field (VF) center are more easily detected: a correlation between amplitudes and visual acuity is best in strabismic amblyopias, is less expressed in maculopathies of the retina and weak in ON. The absence or reduction of amplitudes to smaller check sizes, however, is an important indication of a disorder in the VF center of ON in an early or recovered stage. Acquired color vision defects of the tritan-like type are more confined to discrete ON, whereas the red/green type is reserved to more severe ON. The DLT of the VF center is reduced in a different, significant and non significant extent in discrete optic neuropathies and the correlation between DLT and visual acuity is weak. A careful numerical analysis is needed in types of discrete ON where the central DLT lies within normal statistical limits: a side difference of the DLT between the affected and the normal fellow eye is always present. Evaluation of visual fatigue effects and of the relative sensitivity loss of VF center and VF periphery may provide further diagnostic information.

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Influence of Pupillary Size on $$\overline {{\text{P100}}}$$ Latency Time of Pattern-Reversal VEP

Cited by 7 publications

References 12 publications

A Comparison between Multifocal and Conventional VEP Latency Changes Secondary to Glaucomatous Damage

A Comparison between Multifocal and Conventional VEP Latency Changes Secondary to Glaucomatous Damage

V-5 : Les POTENTIELS ÉVOQUÉS VISUELS corticaux (PEV)

Neuropathies of the optic nerve and visual evoked potentials with special reference to color vision and differential light threshold measured with the computer perimeter OCTOPUS

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