Visual pathway and visual field defects Flashcards
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4
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Explain the Retino-tecto-extrastriate pathway
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5
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What is Anopia and how can it be diagnosed ?
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• Anopia:
• loss of visual field
• Diagnosis of site of injury can be obtained from location of field loss
6
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What is Scotoma and how can it be diagnosed ?
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Scotoma:
• smaller region of visual field loss, often due to cortical lesions
• To diagnose blindness in specific portions of the retina of each eye, a process called perimetry is used
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9
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what happens in Optic tract lesion
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10
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What happens in Optic radiation lesion
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13
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Unilateral lesion of the occipital cortex (V1, area 17) leads to ?
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14
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Lesion at the macular region in area 17 leads to
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