In some cases, the impairment may be limited to a single
hemifield, in which case it is termed 'hemidyschromatopia.
Nine eyes had generalized depression of the visual field, 2 had superotemporal quadrantanopsia, 1 had superior and inferior arcuate defect, 1 had depression in the nasal quadrant, and 5 had inferior
hemifield defect.
Visual field loss was defined as glaucoma
hemifield test result outside the normal limits and three points abnormal at the 5% level in one
hemifield on the pattern deviation plot of a Humphrey Visual Field Analyzer.
The average superior
hemifield retinal sensitivity of visual field analysis is 24.
In the right
hemifield, the proportion of white noise decreased and that of pink noise increased, reaching equal levels at 90 degrees (see Figure 1).
5% of the infants had
hemifield asymmetry of 20 degrees or more.
7 and/or neuroretinal rim narrowing) with associated visual field defect on automated perimetry (Swedish interactive thresholding algorithm standard 24-2 program; Humphrey field analyzer II 750i; Carl Zeiss Meditee) if the following were found: (1) glaucoma
hemifield test results outside normal limits; (2) a cluster of 3 or more nonedge, contiguous points on the pattern deviation plot, not crossing the horizontal meridian with less than a 5% probability of being present in age-matched healthy individuals (one of which was <1%); and (3) pattern standard deviation less than 0.
Among the approaches used in the treatment of VSN, we find right
hemifield eye patching (RHEP).
Muller, "Sustained division of spatial attention to multiple locations within one
hemifield," Neuroscience Letters, vol.
a cluster of three points (excluding rim area) with a probability of <5% on a pattern deviation map in at least one
hemifield and comprising at least one point with a probability of <1%;
Zwiers et al [20] performed a series of sound localization experiments that studied the sound localization accuracy in the 2D
hemifield of two groups of both sighted and early-blind subjects.
More distinct auditory ERPs with N1 deflections were again obtained to auditory stimuli applied to the right
hemifield (C3: -1.
