نتایج جستجو برای: visual defects
تعداد نتایج: 488712 فیلتر نتایج به سال:
The effect of hemianopia on line bisection is not known. To study this, manual line bisection in 30 patients with unilateral cerebral hemispheric lesions was examined. The mean bisection point in a group of eight patients with left hemineglect was biased rightward (ipsilaterally), as expected. Among the remaining 22 patients, eight had right hemianopic visual defects, eight had left hemianopic ...
Nerve fibers originating in the retina follow a specific topographical arrangement in the optic nerve and chiasm. Compressive lesions at the junction of the intracranial optic nerve and optic chiasm can produce characteristic visual field defects. Optic nerve involvement at the junction of the optic chiasm results in unilateral visual field loss. If fibers from the inferonasal retina of the con...
The objective of this study is to investigate the characteristics and the evolution of visual field damage caused by Leber's hereditary optic neuropathy (LHON) and to provide clinical data for the diagnosis of LHON. Parameters of visual field in 32 consecutive patients (49 eyes) with LHON who were confirmed by genetic diagnostic tests were retrospectively measured within 1 week, between three t...
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