3137 Motion-related visual evoked potentials in chronic open angle glaucoma
نویسندگان
چکیده
منابع مشابه
3137 Motion-related visual evoked potentials in chronic open angle glaucoma
Punme A definite need remains for accurate follow-up of limctional loss due to chronic open angle glaucoma, applicable in clinical practice. In 1991, the measurement of peripheral colour contrast sensitivity was introduced as a method for evaluating functional loss in incipient glaucoma (“ring test”)(Yu et al., IOVS, 32: 2779-2789). We modified this method in a way that thresholds arc now dctcn...
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BACKGROUND AND AIMS Visual evoked potentials (VEPs) assess the integrity of the visual pathways from the optic nerve to the occipital cortex. Optic disc cupping and visual field loss have been associated with prolongation of latency of VEP in primary open angle glaucoma (POAG). METHODS Pattern reversal and flash VEP tests were done in consenting 20 primary open angle glaucoma eyes and 40 norm...
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Visual evoked potentials (VEPs) were assessed in basal condition and after photostress in normal subjects, in subjects with ocular hypertension (OHT), and in subjects with primary open-angle glaucoma (POAG). The VEPs recorded in basal condition showed that in patients with OHT and POAG a latency of the P100 peak was higher than in controls. The amplitudes were reduced in POAG patients but not i...
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Visual evoked potentials is an important visual electrophysiological tool which has been used for the evaluation of visual field defects in primary open-angle glaucoma and is an appropriate objective measure of optic nerve function. Significant correlations between the magnitude of the VEP parameters and MD of Humphrey static perimetry suggest that the impaired visual cortical responses observe...
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Photostress recovery time was measured in 30 eyes from 15 patients with chronic open angle glaucoma, and 30 eyes from 15 individuals of a similar age group with no ophthalmological disorder. The average recovery time in patients with glaucoma was 70.47 (SD 35.39) seconds. The average recovery time in the control population was 41.97 (SD 17.34) seconds. This difference was statistically signific...
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ژورنال
عنوان ژورنال: Vision Research
سال: 1995
ISSN: 0042-6989
DOI: 10.1016/0042-6989(95)90266-x