| 21. | Bitemporal hemianopsia most commonly occurs as a result of tumors located at the mid-optic chiasm.
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| 22. | It is recommended for patients with tumors that don t come into contact with the optic chiasm.
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| 23. | The crossing of the nasal half of macular fibers of central vision occurs posteriorly in the chiasm.
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| 24. | Because macular fibers cross more posteriorly in the chiasm, they are damaged in posterior chiasmal syndrome.
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| 25. | A posterior chiasm lesion should only produce defects on the temporal sides of the central visual field.
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| 26. | Visual impairment is a common presenting symptom, due to compression or invasion of the optic chiasm.
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| 27. | In neurology, the optic chiasm is named for the letter Chi because of its ?-shape.
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| 28. | Gordon Wenham has analyzed the Genesis Flood narrative and has shown that it is essentially an elaborate chiasm.
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| 29. | However, the inferonasal fibers pass more anteriorly in the chiasm while the superonasal fibers pass more posteriorly.
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| 30. | The two optic tracts, representing the right and left visual fields, emerge posteriorly from the posterior chiasm.
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