Altitudinal Hemianopia Caused by Occipital Infarctions

Essential thrombocythaemia presenting with subclavian artery thrombosis and multiple embolic events

“…Bilateral occipital lobe infarction can lead to an altitudinal visual field loss1 and this is the probable explanation for the visual field defect in this case. The right arm ataxia is probably due to interruption of proprioception fibres through the ventral posterolateral nucleus of the thalamus as a result of the left PCA territory infarction.…”

Essential thrombocythaemia presenting with subclavian artery thrombosis and multiple embolic events

“…Bilateral occipital lobe infarction can lead to an altitudinal visual field loss1 and this is the probable explanation for the visual field defect in this case. The right arm ataxia is probably due to interruption of proprioception fibres through the ventral posterolateral nucleus of the thalamus as a result of the left PCA territory infarction.…”

Case Series: Bilateral Homonymous Visual Field Defects Due to Bilateral Ischemic Strokes

“…1 Depending on the degree and the affected site of the optic pathway, various clinical types of bilateral homonymous visual field defects have been described, which are rare and have been infrequently reported. [3][4][5][6][7][8][9][10][11][12] A previous study has reported that only 6% in a large group of patients with homonymous hemianopias had bilateral visual field loss, and up-to-date most published studies represent single case reports. 1 There have been eight case reports of bilateral superior altitudinal hemianopia caused by occipital lobe lesions 3 ; however, the extent of the lesions inside the visual cortex was not always evaluated in those previously reported patients.…”

“…4 There are also some additional sporadic case reports of altitudinal hemianopia, resulting from a combination of bilateral superior or inferior homonymous quadrantanopia. [5][6][7] We here report detailed clinical and radiological findings of three additional cases of bilateral homonymous visual field defects, two patients presenting with superior altitudinal hemianopia, resulting from a combination of right and left superior homonymous quadrantanopia, and a third one with bilateral incomplete homonymous hemianopia. Based on magnetic resonance imaging findings, we evaluated the extent of the lesions affecting the visual pathway and discussed the correlation between the location of the lesions and visual field defects in our patients.…”

Essential thrombocythaemia presenting with subclavian artery thrombosis and multiple embolic events

“…Bilateral occipital lobe infarction can lead to an altitudinal visual field loss1 and this is the probable explanation for the visual field defect in this case. The right arm ataxia is probably due to interruption of proprioception fibres through the ventral posterolateral nucleus of the thalamus as a result of the left PCA territory infarction.…”

Case Series: Bilateral Homonymous Visual Field Defects Due to Bilateral Ischemic Strokes

“…1 Depending on the degree and the affected site of the optic pathway, various clinical types of bilateral homonymous visual field defects have been described, which are rare and have been infrequently reported. [3][4][5][6][7][8][9][10][11][12] A previous study has reported that only 6% in a large group of patients with homonymous hemianopias had bilateral visual field loss, and up-to-date most published studies represent single case reports. 1 There have been eight case reports of bilateral superior altitudinal hemianopia caused by occipital lobe lesions 3 ; however, the extent of the lesions inside the visual cortex was not always evaluated in those previously reported patients.…”

“…4 There are also some additional sporadic case reports of altitudinal hemianopia, resulting from a combination of bilateral superior or inferior homonymous quadrantanopia. [5][6][7] We here report detailed clinical and radiological findings of three additional cases of bilateral homonymous visual field defects, two patients presenting with superior altitudinal hemianopia, resulting from a combination of right and left superior homonymous quadrantanopia, and a third one with bilateral incomplete homonymous hemianopia. Based on magnetic resonance imaging findings, we evaluated the extent of the lesions affecting the visual pathway and discussed the correlation between the location of the lesions and visual field defects in our patients.…”

Essential thrombocythaemia presenting with subclavian artery thrombosis and multiple embolic events

“…Bilateral occipital lobe infarction can lead to an altitudinal visual field loss1 and this is the probable explanation for the visual field defect in this case. The right arm ataxia is probably due to interruption of proprioception fibres through the ventral posterolateral nucleus of the thalamus as a result of the left PCA territory infarction.…”

Case Series: Bilateral Homonymous Visual Field Defects Due to Bilateral Ischemic Strokes

“…1 Depending on the degree and the affected site of the optic pathway, various clinical types of bilateral homonymous visual field defects have been described, which are rare and have been infrequently reported. [3][4][5][6][7][8][9][10][11][12] A previous study has reported that only 6% in a large group of patients with homonymous hemianopias had bilateral visual field loss, and up-to-date most published studies represent single case reports. 1 There have been eight case reports of bilateral superior altitudinal hemianopia caused by occipital lobe lesions 3 ; however, the extent of the lesions inside the visual cortex was not always evaluated in those previously reported patients.…”

“…4 There are also some additional sporadic case reports of altitudinal hemianopia, resulting from a combination of bilateral superior or inferior homonymous quadrantanopia. [5][6][7] We here report detailed clinical and radiological findings of three additional cases of bilateral homonymous visual field defects, two patients presenting with superior altitudinal hemianopia, resulting from a combination of right and left superior homonymous quadrantanopia, and a third one with bilateral incomplete homonymous hemianopia. Based on magnetic resonance imaging findings, we evaluated the extent of the lesions affecting the visual pathway and discussed the correlation between the location of the lesions and visual field defects in our patients.…”