MRI Study of the Posterior Visual Pathways in Primary Open Angle Glaucoma
نویسندگان
چکیده
منابع مشابه
Rate of visual field progression in primary open-angle glaucoma and primary angle-closure glaucoma.
To estimate the rate of visual field progression in primary open-angle glaucoma (POAG) and primary angle-closure glaucoma (PACG), we reviewed the medical records of POAG and PACG patients who had a minimum of 5-year longitudinal Goldmann visual field data. I4e and I2e isopters were quantified using grid systems. The rate of change was calculated from the slope of a linear fit to a series of ave...
متن کاملThe visual field indices in primary open-angle glaucoma.
PURPOSE The distribution of sensitivity across the visual field, as determined by automated threshold static perimetry, can be summarized in terms of visual field indices. Such indices can be weighted for the variation in threshold at each eccentricity. The aims of this study were to determine the influence of the weighting factor, the relationship between the unweighted indices derived from Pr...
متن کاملPrimary open-angle glaucoma
Primary open-angle glaucoma (POAG) is an idiopathic disorder in which the resistance to outflow through the trabecular meshwork gradually increases and the intraocular pressure (IOP) rises, causing irreversible damage to the optic nerve POAG is the second most common cause of vision loss in the U.S. Usually asymptomatic until advanced visual field loss has occurred; less than 50% of those...
متن کاملVisual Evoked Potentials in Primary Open Angle Glaucoma
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...
متن کاملAsymmetric Patterns of Visual Field Defect in Primary Open-Angle and Primary Angle-Closure Glaucoma.
Purpose To compare the hemifield asymmetry of visual field (VF) loss in primary open-angle glaucoma (POAG) and primary angle-closure glaucoma (PACG) across all severity levels. Methods A total of 522 eyes of 327 patients with POAG (mean age ± SD, 54.1 ± 12.4 years) and 375 eyes of 204 patients with PACG (67.3 ± 8.9 years) were included. Subjects meeting the definitions of POAG or PACG were in...
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ژورنال
عنوان ژورنال: Journal of Glaucoma
سال: 2017
ISSN: 1057-0829
DOI: 10.1097/ijg.0000000000000558