At the early stage of FFA, all or a part of the optic disc had postponed or absent fluorescence filling with the corresponding visual field defects.
眼底荧光素血管造影早期视盘全部或部分荧光充盈延缓或缺损，伴有相应的视野缺损。
Conclusion The compression of optic nerves and optic chiasma is responsible for different types of visual field defects caused by saddle area tumors.
结论颅底肿物引起不同类型的视野缺损的原因与压迫视神经、视交叉相关。
Objective To provide morphological evidences for visual field defects caused by the compression of optic nerves and optic chiasma by saddle area tumors.
目的为脑底肿瘤压迫视神经、视交叉引起视野缺损原因提供形态学依据。
Cataract: Opacity of the eye's crystalline lens. Cataracts causing central visual-field defects are most likely to affect vision.
白内障：表现为眼内水晶体混浊的眼科病。白内障导致的视野缺损多半会损害视力。
Cataract: Opacity of the eye's crystalline lens. Cataracts causing central visual-field defects are most likely to affect vision.
白内障：表现为眼内水晶体混浊的眼科病。白内障导致的视野缺损多半会损害视力。
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