Visual field defects--essentials for neurologists.Presents research advancements on visual impairment. Instruments used in evaluating the central region of the visual fields; Causes of chiasmal lesions; Characterization of the retina.SchieferDept. of Pathophysiology of Vision and Neuro-OphthalmologyUlrich...
When defects occur in the visual field of only one eye, the cause can be localized to the eye or to anterior visual pathways (before the two optic nerves meet at the optic chiasm). In contrast, defects that involve the visual fields of both eyes often (but not always, as in the case...
visual field defectsWe evaluated the prognosis of visual fields, visual acuity, and fitness to drive and the phenomenon of statokinetic dissociation in patients with pituitary adenoma who undergo surgery. In patients with pituitary adenoma, visual requirements for on road driving performance and the ...
Figure 5 Illustration of a case with correspondence between the locations of Peripapillary intrachoroidal cavitation (PICC), lamina cribrosa defect (LCD), and visual fields defects (VFDs). (a, b, f and g) Red star = PICC. (a) Fundus image showing a severely distorted optic nerve head (ON...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook vis·u·al field de·fect (vizh'ū-ăl fēld dē'fekt) Specific types of vision loss due to problems in the eye itself or the brain. Medical Dictionary for the Health Professions and Nursing © Farle...
A recent study reports a prevalence of 29% in a survey of 41 pat·lents.21 The results of a recent general practitioner questionnaire suggest an incidence of VGB-associated visual field defects of less than 1%, but there was no systematic examination of visual fields?2 It is likely that ...
How is a visual field testing procedure performed? There are a variety of methods to measure the visual fields. During an eye exam, visual field testing is performed on one eye at a time, with the opposite eye completely covered to avoid errors. In all testing, the patient must look strai...
When low light intensities were used, 12 out of 14 women had significantly smaller visual fields during pregnancy as compared to the post partum period. No significant differences were found between early and late pregnancy despite significantly different prolactin values. The typical defect of late ...
VISUAL FIELDS DEFECTS AS A DECIDING DIAGNOSTIC FACTOR IN LESIONS OF TEMPORAL LOBE SIMULATING CEREBELLAR INVOLVEMENT*An abstract is unavailable. This article is available as a PDF only.doi:10.1097/00005053-193510000-00003GordonAlfredJournal of Nervous & Mental Disease...
Today, surgeons managing glaucoma rely largely on optical coherence tomography (which measures ocular structure) and visual fields (which assess function) to detect disease and monitor progression. However, disagreement between them is a frequent occurrence. That raises the question of what to do when...