மருத்துவ மற்றும் பரிசோதனை கண் மருத்துவ இதழ்
திறந்த அணுகல்

சுருக்கம்

Functional Magnetic Resonance in Binasal Hemianopia

Jan Lestak, Jaroslav Tintera, Jiri Zahlava, Martin Sverepa and Pavel Rozsival

The authors report a case of binasal hemianopia in a 34-year-old female who, at the age of 22 years, underwent resection of a pinealoma located at the 3rd ventricle. Less than a year after the surgery, partial visual field losses occurred. Examination of retina, retinal nerve fiber layer (RNFL) as well as examination of the ganglion cell complex (GCC) excluded a pregeniculate lesion. Functional magnetic resonance imaging (fMRI) responses evoked by both bi- and monocular stimulation confirmed our finding of reduced activity in the visual cortex corresponding to the damage in a portion of the visual pathway.