10.5 (10.5) 15.75 (20.0) 10.3 (24.2) Search 6.0 (6.9) 8.5 (9.8) 7.0 (13.0) p=0.31 n.s. Task Parameter: Fixation duration in sec; median (IQR) p-value Easy Detailed Recollection Condition Viewing 0.32 (0.11) 0.28 (0.09) 0.28 (0.08) p<0.31 n.s. Imagery 0.38 (0.16) 0.35 (0.17) 0.32 (0.15) p<0.001 * comparison of picture content with all tasks together: p<0.001 ** IQR, interquartile range ++ compar...

Haidinger brushes, an entoptic phenomenon perceived only through the most central macular retina, have been used in addition to kinetic and static perimetry with the Tubingen perimeter for determining macular sparing and splitting in hemianopic patients. Seven patients were examined: 2 with a bitemporal hemianopia resulting from traumatic damage to the optic chiasma, and 5 with a homonymous hem...

Background. This study aimed to determine whether it is possible to predict driving safety of individuals with homonymous hemianopia or quadrantanopia based upon a clinical review of neuroimages that are routinely available in clinical practice. Methods. Two experienced neuroophthalmologists viewed a summary report of the CT/MRI scans of 16 participants with homonymous hemianopic or quadrantano...

PURPOSE A zone of overlap along the vertical retinal meridian where ipsi- and contralaterally projecting ganglion cells intermingle has been demonstrated histologically in nonhuman primates. The widening of the zone of overlap in the foveal region was thought to produce a foveal sparing extending 1.5 degrees in the blind hemifield in human hemianopia. The functional relevance of the nasotempora...

BACKGROUND The two most common types of acquired reading disorder resulting from damage to the territory of the dominant posterior cerebral artery are hemianopic and pure alexia. Patients with pronounced hemianopic alexia have a right homonymous hemianopia that encroaches into central or parafoveal vision; they read individual words well, but generate inefficient reading saccades when reading a...

INTRODUCTION Following unilateral damage of the primary visual cortex one of the most common visual field defects observed is Homonymous Hemianopia (HH), a loss of vision of the contralesional hemifield in each eye. The ipsilesional ("intact") part of the central visual field is often used to compensate for difficulties encountered in the peripheral hemianopic visual field. However, the quality...

PURPOSE Homonymous hemianopia (the loss of vision on the same side in each eye) impairs the ability to navigate and walk safely. We evaluated peripheral prism glasses as a low vision optical device for hemianopia in an extended wearing trial. METHODS Twenty-three patients with complete hemianopia (13 right) with neither visual neglect nor cognitive deficit enrolled in the 5-visit study. To ex...