visual field

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visual field

The angular extent of space which can be perceived when the head and eyes are kept fixed.
References in periodicals archive ?
The differential diagnosis between a visual field defect and UN is an important clinical consideration.
As a positive correlation is seen between visual field analysis and RNFL analysis in the current study, it is recommended that further studies should be carried out in early glaucoma and glaucoma suspects as OCT may aid in earlier detection of disease than visual fields.
We see much better in the center of our visual field (along the visual axis) than in the periphery.
Following the standard full ophthalmologic examination, both eyes of all the subjects were tested by central 30-2 full threshold test for visual field analysis using the Medmont M700 automated perimeter with stimulus target projection by light-emitting diode.
The patient was asked to undergo testing of complete blood count and phospholipid status, screening of coagulation factors, computerized visual field, optical coherence tomography of fundus, and check-up by the neurologist with nuclear magnetic resonance of endocranium.
The consequence of these unusual eye movements is that irrespective of vigorous head movements in all planes, the eyes movements always move in such a way to ensure that the area above the animal is always in view simultaneously by both eyes -something that does not occur in any other region of the rat's visual field.
As each eye was tested with both strategies, a total of 122 visual fields were available for comparison: 61 of normal strategy and 61 of TOP strategy.
Of these patients, 68 fulfilled the recruitment criteria of visual acuity better than 20/60 in at least one eye and a horizontal visual field diameter of larger than 6 degrees in at least one eye.
All patients demonstrated central scotoma due to macular pathology by means of Amsler chart reading and automated visual field (HVF) testing.
Attributing the differences in driving safety between different pathology groups solely to the effect of the visual fields, however, is questionable.